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Khan MT, Almas M, Malik N, Jalota A, Sharma S, Ali SA, Luthra K, Suri V, Suri A, Basak S, Seth P, Chosdol K, Sinha S. STAT1 mediated downregulation of the tumor suppressor gene PDCD4, is driven by the atypical cadherin FAT1, in glioblastoma. Cell Signal 2024; 119:111178. [PMID: 38640981 DOI: 10.1016/j.cellsig.2024.111178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 03/30/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
STAT1 (Signal Transducer and Activator of Transcription 1), belongs to the STAT protein family, essential for cytokine signaling. It has been reported to have either context dependent oncogenic or tumor suppressor roles in different tumors. Earlier, we demonstrated that Glioblastoma multiforme (GBMs) overexpressing FAT1, an atypical cadherin, had poorer outcomes. Overexpressed FAT1 promotes pro-tumorigenic inflammation, migration/invasion by downregulating tumor suppressor gene, PDCD4. Here, we demonstrate that STAT1 is a novel mediator downstream to FAT1, in downregulating PDCD4 in GBMs. In-silico analysis of GBM databases as well as q-PCR analysis in resected GBM tumors showed positive correlation between STAT1 and FAT1 mRNA levels. Kaplan-Meier analysis showed poorer survival of GBM patients having high FAT1 and STAT1 expression. SiRNA-mediated knockdown of FAT1 decreased STAT1 and increased PDCD4 expression in glioblastoma cells (LN229 and U87MG). Knockdown of STAT1 alone resulted in increased PDCD4 expression. In silico analysis of the PDCD4 promoter revealed four putative STAT1 binding sites (Site1-Site4). ChIP assay confirmed the binding of STAT1 to site1. ChIP-PCR revealed decrease in the binding of STAT1 on the PDCD4 promoter after FAT1 knockdown. Site directed mutagenesis of Site1 resulted in increased PDCD4 luciferase activity, substantiating STAT1 mediated PDCD4 inhibition. EMSA confirmed STAT1 binding to the Site 1 sequence. STAT1 knockdown led to decreased expression of pro-inflammatory cytokines and EMT markers, and reduced migration/invasion of GBM cells. This study therefore identifies STAT1 as a novel downstream mediator of FAT1, promoting pro-tumorigenic activity in GBM, by suppressing PDCD4 expression.
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Affiliation(s)
- Md Tipu Khan
- Department of Cellular and Molecular Neuroscience, National Brain Research Centre, Manesar 122052, India; Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India; Department of Microbiology and Immunology, University of Illinois College of Medicine, Chicago, IL 60612-7344, USA
| | - Mariyam Almas
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Nargis Malik
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India; Centre for Cancer Research, National Cancer Institute, Bethesda, USA
| | - Akansha Jalota
- Department of Cellular and Molecular Neuroscience, National Brain Research Centre, Manesar 122052, India; Department of Oncology, Albert Einstein College of Medicine, New York, USA
| | - Shaifali Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Sk Asif Ali
- Systems Immunology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Vaishali Suri
- Neuropathalogy Laboratory, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Ashish Suri
- Department of Neurosurgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Soumen Basak
- Systems Immunology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Pankaj Seth
- Department of Cellular and Molecular Neuroscience, National Brain Research Centre, Manesar 122052, India
| | - Kunzang Chosdol
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Subrata Sinha
- Department of Cellular and Molecular Neuroscience, National Brain Research Centre, Manesar 122052, India; Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
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Lection J, Wagner B, Byron M, Miller A, Rollins A, Chenier T, Cheong SH, Diel de Amorim M. Inflammatory markers for differentiation of endometritis in the mare. Equine Vet J 2024; 56:678-687. [PMID: 38219734 DOI: 10.1111/evj.14058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 12/14/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Endometrial biopsy is required to diagnose mares with chronic endometritis and endometrial degenerative fibrosis. An increase in understanding of equine reproductive immunology could be utilised to create less-invasive, time-efficient diagnostic tools especially when evaluating mares for chronic endometritis. OBJECTIVES To evaluate inflammatory cytokine and chemokine concentrations in uterine fluid samples collected by low-volume lavage (LVL) as a potential screening diagnostic biomarker for endometritis. STUDY DESIGN Prospective cross-sectional clinical study. METHODS Forty-six mares underwent a LVL and subsequently endometrial biopsy. Mares were split in three groups: healthy, acute endometritis, and chronic endometrial fibrosis (CEF) based on cytological and histological evaluation. A fluorescent bead-based multiplex assay for IFN-γ, IFN-α, IL-1β, IL-4, IL-10, IL-17, sCD14, TNF-α, CCL2, CCL3, CCL5 and CCL11 were carried out on the LVL fluid. The endometrial biopsy was utilised for histology and qPCR of IFN-γ, IL-1β, IL-6, IL-8, IL-17, TNF-α, CCL2 and CCL3 genes. Statistical analyses examined differences in inflammatory markers and predictive modelling for diseased endometrium. RESULTS Secreted concentrations of IFN-γ were lower in LVL fluid from reproductively healthy mares compared with acute endometritis (p = 0.04) and CEF (p = 0.006). Additionally, IL-17, IL-10, IL-1β, TNF-α, CCL2, CCL3, CCL5 and CCL11 were significantly increased (p ≤ 0.04) in LVL from CEF mares compared with healthy mares. Mares with CCL2 concentrations ≥550 pg/mL (14/14) had 100% probability of having CEF and/or acute endometritis. Healthy mares had lower relative abundance of IL-17 mRNA compared with mares in CEF group [median (interquartile rage) = 14.76 (13.3, 15.3) and 12.4 (10.54, 13.81)], respectively (p = 0.02). MAIN LIMITATIONS Limited sample size: larger numbers of mares with and without endometritis are required and reference intervals in LVL samples have to be established. CONCLUSIONS Inflammatory chemokines and cytokines concentrations differed between healthy mares and mares with acute endometritis or CEF in LVL.
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Affiliation(s)
- Jennine Lection
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
| | - Bettina Wagner
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, New York, USA
| | - Michael Byron
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
| | - Andrew Miller
- Department of Biomedical Sciences, Cornell University, Ithaca, New York, USA
| | - Alicia Rollins
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, New York, USA
| | - Tracey Chenier
- Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
| | - Soon Hon Cheong
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
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Chen J, Hui Q, Titanji BK, So-Armah K, Freiberg M, Justice AC, Xu K, Zhu X, Gwinn M, Marconi VC, Sun YV. A multi-trait epigenome-wide association study identified DNA methylation signature of inflammation among people with HIV. RESEARCH SQUARE 2024:rs.3.rs-4419840. [PMID: 38854093 PMCID: PMC11160930 DOI: 10.21203/rs.3.rs-4419840/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Inflammation underlies many conditions causing excess morbidity and mortality among people with HIV (PWH). A handful of single-trait epigenome-wide association studies (EWAS) have suggested that inflammation is associated with DNA methylation (DNAm) among PWH. Multi-trait EWAS may further improve statistical power and reveal pathways in common between different inflammatory markers. We conducted single-trait EWAS of three inflammatory markers (soluble CD14, D-dimers, and interleukin 6) in the Veteran Aging Cohort Study (n = 920). The study population was all male PWH with an average age of 51 years, and 82.3% self-reported as Black. We then applied two multi-trait EWAS methods-CPASSOC and OmniTest-to combine single-trait EWAS results. CPASSOC and OmniTest identified 189 and 157 inflammation-associated DNAm sites respectively, of which 112 overlapped. Among the identified sites, 56% were not significant in any single-trait EWAS. Top sites were mapped to inflammation-related genes including IFITM1, PARP9 and STAT1. These genes were significantly enriched in pathways such as "type I interferon signaling" and "immune response to virus". We demonstrate that multi-trait EWAS can improve the discovery of inflammation-associated DNAm sites, genes, and pathways. These DNAm sites suggest molecular mechanisms in response to inflammation associated with HIV and might hold the key to addressing persistent inflammation in PWH.
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Affiliation(s)
| | | | | | - Kaku So-Armah
- Boston University Chobanian and Avedisian School of Medicine
| | - Matthew Freiberg
- Vanderbilt University School of Medicine and Tennessee Valley Healthcare System
| | | | - Ke Xu
- Connecticut Veteran Health System
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Mildenberger J, Rebours C. Green ( Ulva fenestrata) and Brown ( Saccharina latissima) Macroalgae Similarly Modulate Inflammatory Signaling by Activating NF- κB and Dampening IRF in Human Macrophage-Like Cells. J Immunol Res 2024; 2024:8121284. [PMID: 38799117 PMCID: PMC11126347 DOI: 10.1155/2024/8121284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/22/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024] Open
Abstract
Macroalgae are considered healthy food ingredients due to their content in numerous bioactive compounds, and the traditional use of whole macroalgae in Asian cuisine suggests a contribution to longevity. Although much information is available about the bioactivity of pure algal compounds, such as different polyphenols and polysaccharides, documentation of potential effects of whole macroalgae as part of Western diets is limited. Lifestyle- and age-related diseases, which have a high impact on population health, are closely connected to underlying chronic inflammation. Therefore, we have studied crude extracts of green (Ulva fenestrata) and brown (Saccharina latissima) macroalgae, as two of the most promising food macroalgae in the Nordic countries for their effect on inflammation in vitro. Human macrophage-like reporter THP-1 cells were treated with macroalgae extracts and stimulated with lipopolysaccharide (LPS) to induce inflammatory signalling. Effects of the macroalgae extracts were assessed on transcription factor activity of NF-κB and IRF as well as secretion and/or expression of the cytokines TNF-α and IFN-β and chemokines IL-8 and CXCL10. The crude macroalgae extracts were further separated into polyphenol-enriched and polysaccharide-enriched fractions, which were also tested for their effect on transcription factor activity. Interestingly, we observed a selective activation of NF-κB, when cells were treated with macroalgae extracts. On the other hand, pretreatment with macroalgae extracts selectively repressed IRF activation when inflammatory signaling was subsequently induced by LPS. This effect was consistent for both tested species as well as for polyphenol- and polysaccharide-enriched fractions, of which the latter had more pronounced effects. Overall, this is the first indication of how macroalgae could modulate inflammatory signaling by selective activation and subsequent repression of different pathways. Further in vitro and in vivo studies of this mechanism would be needed to understand how macroalgae consumption could influence the prevention of noncommunicable, lifestyle- and age-related diseases that are highly related to unbalanced inflammatory processes.
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Liu Y, Xu XQ, Li WJ, Zhang B, Meng FZ, Wang X, Majid SM, Guo Z, Ho WZ. Cytosolic DNA sensors activation of human astrocytes inhibits herpes simplex virus through IRF1 induction. Front Cell Infect Microbiol 2024; 14:1383811. [PMID: 38808062 PMCID: PMC11130358 DOI: 10.3389/fcimb.2024.1383811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/25/2024] [Indexed: 05/30/2024] Open
Abstract
Introduction While astrocytes participate in the CNS innate immunity against herpes simplex virus type 1 (HSV-1) infection, they are the major target for the virus. Therefore, it is of importance to understand the interplay between the astrocyte-mediated immunity and HSV-1 infection. Methods Both primary human astrocytes and the astrocyte line (U373) were used in this study. RT-qPCR and Western blot assay were used to measure IFNs, the antiviral IFN-stimulated genes (ISGs), IFN regulatory factors (IRFs) and HSV-1 DNA. IRF1 knockout or knockdown was performed with CRISPR/Cas9 and siRNA transfection techniques. Results Poly(dA:dT) could inhibit HSV-1 replication and induce IFN-β/IFN-λs production in human astrocytes. Poly(dA:dT) treatment of astrocytes also induced the expression of the antiviral ISGs (Viperin, ISG56 and MxA). Among IRFs members examined, poly(dA:dT) selectively unregulated IRF1 and IRF9, particularly IRF1 in human astrocytes. The inductive effects of poly(dA:dT) on IFNs and ISGs were diminished in the IRF1 knockout cells. In addition, IRF1 knockout attenuated poly(dA:dT)-mediated HSV-1 inhibition in the cells. Conclusion The DNA sensors activation induces astrocyte intracellular innate immunity against HSV-1. Therefore, targeting the DNA sensors has potential for immune activation-based HSV-1 therapy.
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Affiliation(s)
- Yu Liu
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Xi-Qiu Xu
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Wei-Jing Li
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Biao Zhang
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Feng-Zhen Meng
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Xu Wang
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Safah M. Majid
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Zihan Guo
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Wen-Zhe Ho
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
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Valdés-López JF, Hernández-Sarmiento LJ, Tamayo-Molina YS, Velilla-Hernández PA, Rodenhuis-Zybert IA, Urcuqui-Inchima S. Interleukin 27, like interferons, activates JAK-STAT signaling and promotes pro-inflammatory and antiviral states that interfere with dengue and chikungunya viruses replication in human macrophages. Front Immunol 2024; 15:1385473. [PMID: 38720890 PMCID: PMC11076713 DOI: 10.3389/fimmu.2024.1385473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024] Open
Abstract
Interferons (IFNs) are a family of cytokines that activate the JAK-STAT signaling pathway to induce an antiviral state in cells. Interleukin 27 (IL-27) is a member of the IL-6 and/or IL-12 family that elicits both pro- and anti-inflammatory responses. Recent studies have reported that IL-27 also induces a robust antiviral response against diverse viruses, both in vitro and in vivo, suggesting that IFNs and IL-27 share many similarities at the functional level. However, it is still unknown how similar or different IFN- and IL-27-dependent signaling pathways are. To address this question, we conducted a comparative analysis of the transcriptomic profiles of human monocyte-derived macrophages (MDMs) exposed to IL-27 and those exposed to recombinant human IFN-α, IFN-γ, and IFN-λ. We utilized bioinformatics approaches to identify common differentially expressed genes between the different transcriptomes. To verify the accuracy of this approach, we used RT-qPCR, ELISA, flow cytometry, and microarrays data. We found that IFNs and IL-27 induce transcriptional changes in several genes, including those involved in JAK-STAT signaling, and induce shared pro-inflammatory and antiviral pathways in MDMs, leading to the common and unique expression of inflammatory factors and IFN-stimulated genes (ISGs)Importantly, the ability of IL-27 to induce those responses is independent of IFN induction and cellular lineage. Additionally, functional analysis demonstrated that like IFNs, IL-27-mediated response reduced chikungunya and dengue viruses replication in MDMs. In summary, IL-27 exhibits properties similar to those of all three types of human IFN, including the ability to stimulate a protective antiviral response. Given this similarity, we propose that IL-27 could be classified as a distinct type of IFN, possibly categorized as IFN-pi (IFN-π), the type V IFN (IFN-V).
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Affiliation(s)
- Juan Felipe Valdés-López
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | | | - Y. S. Tamayo-Molina
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | | | - Izabela A. Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Silvio Urcuqui-Inchima
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
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7
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Metwally H, Elbrashy MM, Ozawa T, Okuyama K, White JT, Tulyeu J, Søndergaard JN, Wing JB, Muratsu A, Matsumoto H, Ikawa M, Kishi H, Taniuchi I, Kishimoto T. Threonine phosphorylation of STAT1 restricts interferon signaling and promotes innate inflammatory responses. Proc Natl Acad Sci U S A 2024; 121:e2402226121. [PMID: 38621137 PMCID: PMC11046697 DOI: 10.1073/pnas.2402226121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/15/2024] [Indexed: 04/17/2024] Open
Abstract
Since its discovery over three decades ago, signal transducer and activator of transcription 1 (STAT1) has been extensively studied as a central mediator for interferons (IFNs) signaling and antiviral defense. Here, using genetic and biochemical assays, we unveil Thr748 as a conserved IFN-independent phosphorylation switch in Stat1, which restricts IFN signaling and promotes innate inflammatory responses following the recognition of the bacterial-derived toxin lipopolysaccharide (LPS). Genetically engineered mice expressing phospho-deficient threonine748-to-alanine (T748A) mutant Stat1 are resistant to LPS-induced lethality. Of note, T748A mice exhibited undisturbed IFN signaling, as well as total expression of Stat1. Further, the T748A point mutation of Stat1 recapitulates the safeguard effect of the genetic ablation of Stat1 following LPS-induced lethality, indicating that the Thr748 phosphorylation contributes inflammatory functionalities of Stat1. Mechanistically, LPS-induced Toll-like receptor 4 endocytosis activates a cell-intrinsic IκB kinase-mediated Thr748 phosphorylation of Stat1, which promotes macrophage inflammatory response while restricting the IFN and anti-inflammatory responses. Depletion of macrophages restores the sensitivity of the T748A mice to LPS-induced lethality. Together, our study indicates a phosphorylation-dependent modular functionality of Stat1 in innate immune responses: IFN phospho-tyrosine dependent and inflammatory phospho-threonine dependent. Better understanding of the Thr748 phosphorylation of Stat1 may uncover advanced pharmacologically targetable molecules and offer better treatment modalities for sepsis, a disease that claims millions of lives annually.
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Affiliation(s)
- Hozaifa Metwally
- Laboratory of Immune Regulation, The World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Osaka565-0871, Japan
| | - Maha M. Elbrashy
- Laboratory of Immune Regulation, The World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Osaka565-0871, Japan
- Biochemistry Department, Biotechnology Research Institute, National Research Center, GizaP.O. 12622, Egypt
| | - Tatsuhiko Ozawa
- Department of Immunology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama930-0194, Japan
| | - Kazuki Okuyama
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Kanagawa230-0045, Japan
| | - Jason T. White
- Laboratory of Experimental Immunology, The World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Osaka565-0871, Japan
| | - Janyerkye Tulyeu
- Human Immunology Team, Center for Infectious Disease Education and Research, Osaka University, Suita565-0871, Japan
| | - Jonas Nørskov Søndergaard
- Human Immunology Team, Center for Infectious Disease Education and Research, Osaka University, Suita565-0871, Japan
| | - James Badger Wing
- Laboratory of Human Single Cell Immunology, The World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Osaka565-0871, Japan
| | - Arisa Muratsu
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka565-0871, Japan
| | - Hisatake Matsumoto
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka565-0871, Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Osaka565-0871, Japan
| | - Hiroyuki Kishi
- Department of Immunology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama930-0194, Japan
| | - Ichiro Taniuchi
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Kanagawa230-0045, Japan
| | - Tadamitsu Kishimoto
- Laboratory of Immune Regulation, The World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Osaka565-0871, Japan
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Charles DA, Prince SE. Deciphering the molecular mechanism of NLRP3 in BPA-mediated toxicity: Implications for targeted therapies. Heliyon 2024; 10:e28917. [PMID: 38596095 PMCID: PMC11002687 DOI: 10.1016/j.heliyon.2024.e28917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/11/2024] Open
Abstract
Bisphenol-A (BPA), a pervasive industrial chemical used in polymer synthesis, is found in numerous consumer products including food packaging, medical devices, and resins. Detectable in a majority of the global population, BPA exposure occurs via ingestion, inhalation, and dermal routes. Extensive research has demonstrated the adverse health effects of BPA, particularly its disruption of immune and endocrine systems, along with genotoxic potential. This review focuses on the complex relationship between BPA exposure and the NOD-like receptor protein 3 (NLRP3) inflammasome, a multiprotein complex central to inflammatory disease processes. We examine how BPA induces oxidative stress through the generation of intracellular free radicals, subsequently activating NLRP3 signaling. The mechanistic details of this process are explored, including the involvement of signaling cascades such as PI3K/AKT, JAK/STAT, AMPK/mTOR, and ERK/MAPK, which are implicated in NLRP3 inflammasome activation. A key focus of this review is the wide-ranging organ toxicities associated with BPA exposure, including hepatic, renal, gastrointestinal, and cardiovascular dysfunction. We investigate the immunopathogenesis and molecular pathways driving these injuries, highlighting the interplay among BPA, oxidative stress, and the NLRP3 inflammasome. Finally, this review explores the emerging concept of targeting NLRP3 as a potential therapeutic strategy to mitigate the organ toxicities stemming from BPA exposure. This work integrates current knowledge, emphasizes complex molecular mechanisms, and promotes further research into NLRP3-targeted interventions.
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Affiliation(s)
- Doveit Antony Charles
- Department of Biotechnology, School of Biosciences and Technology, VIT, Vellore, Tamil Nadu, India
| | - Sabina Evan Prince
- Department of Biotechnology, School of Biosciences and Technology, VIT, Vellore, Tamil Nadu, India
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Stepien TA, Singletary LA, Guerra FE, Karlinsey JE, Libby SJ, Jaslow SL, Gaggioli MR, Gibbs KD, Ko DC, Brehm MA, Greiner DL, Shultz LD, Fang FC. Nuclear factor kappa B-dependent persistence of Salmonella Typhi and Paratyphi in human macrophages. mBio 2024; 15:e0045424. [PMID: 38497655 PMCID: PMC11005419 DOI: 10.1128/mbio.00454-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 02/21/2024] [Indexed: 03/19/2024] Open
Abstract
Salmonella serovars Typhi and Paratyphi cause a prolonged illness known as enteric fever, whereas other serovars cause acute gastroenteritis. Mechanisms responsible for the divergent clinical manifestations of nontyphoidal and enteric fever Salmonella infections have remained elusive. Here, we show that S. Typhi and S. Paratyphi A can persist within human macrophages, whereas S. Typhimurium rapidly induces apoptotic macrophage cell death that is dependent on Salmonella pathogenicity island 2 (SPI2). S. Typhi and S. Paratyphi A lack 12 specific SPI2 effectors with pro-apoptotic functions, including nine that target nuclear factor κB (NF-κB). Pharmacologic inhibition of NF-κB or heterologous expression of the SPI2 effectors GogA or GtgA restores apoptosis of S. Typhi-infected macrophages. In addition, the absence of the SPI2 effector SarA results in deficient signal transducer and activator of transcription 1 (STAT1) activation and interleukin 12 production, leading to impaired TH1 responses in macrophages and humanized mice. The absence of specific nontyphoidal SPI2 effectors may allow S. Typhi and S. Paratyphi A to cause chronic infections. IMPORTANCE Salmonella enterica is a common cause of gastrointestinal infections worldwide. The serovars Salmonella Typhi and Salmonella Paratyphi A cause a distinctive systemic illness called enteric fever, whose pathogenesis is incompletely understood. Here, we show that enteric fever Salmonella serovars lack 12 specific virulence factors possessed by nontyphoidal Salmonella serovars, which allow the enteric fever serovars to persist within human macrophages. We propose that this fundamental difference in the interaction of Salmonella with human macrophages is responsible for the chronicity of typhoid and paratyphoid fever, suggesting that targeting the nuclear factor κB (NF-κB) complex responsible for macrophage survival could facilitate the clearance of persistent bacterial infections.
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Affiliation(s)
- Taylor A. Stepien
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | | | - Fermin E. Guerra
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - Joyce E. Karlinsey
- Department of Microbiology, University of Washington, Seattle, Washington, USA
| | - Stephen J. Libby
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - Sarah L. Jaslow
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - Margaret R. Gaggioli
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - Kyle D. Gibbs
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - Dennis C. Ko
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - Michael A. Brehm
- Department of Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Dale L. Greiner
- Department of Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | | | - Ferric C. Fang
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Department of Microbiology, University of Washington, Seattle, Washington, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
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10
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Khumalo GP, Loa-Kum-Cheung W, Van Wyk BE, Feng Y, Cock IE. Leaf extracts of eight selected southern African medicinal plants modulate pro-inflammatory cytokine secretion in LPS-stimulated RAW 264.7 macrophages. Inflammopharmacology 2024; 32:1607-1620. [PMID: 38310564 PMCID: PMC11006729 DOI: 10.1007/s10787-023-01420-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/22/2023] [Indexed: 02/06/2024]
Abstract
This study investigates the anti-inflammatory properties of extracts prepared from the leaves of eight southern African medicinal plants used traditionally to treat inflammation and pain. The inhibitory effect of aqueous and ethanol extracts on the release of pro-inflammatory cytokines was determined in lipopolysaccharide (LPS) stimulated and unstimulated RAW 264.7 murine macrophage cells. The levels of interleukin (IL)-1β, IL-6, tumour necrosis factor-α (TNF-α), interferon-gamma (IFN-γ), monocyte chemoattractant protein 1 (MCP-1) and macrophage inflammatory protein (MIP)-2 release were determined using cytokine multiplex-bead assays. The ethanol extracts of Melianthus comosus Vahl (commonly known as honey flower), Tetradenia riparia (Hochst.) Codd (misty plume bush) and Warburgia salutaris (G. Bertol.) Chiov. (pepper-bark tree), demonstrated the most significant inhibitory activity, with over 50-fold inhibition of IL-1β, IL-6 and TNF-α levels in LPS-stimulated RAW 264.7 macrophages. The aqueous extract of M. comosus also significantly inhibited the secretion of all the tested cytokines and chemokines. Phytochemical investigation of M. comosus ethanol leaf extract using ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLC-HRMS) led to the detection of crassolide, deoxylimonoic acid D-ring-lactone, 2-hydroxynonanoic acid and 5-noniloxytryptamine. To the best of our knowledge, the cytokine inhibition properties of most of the medicinal plants screened in this study are reported for the first time. Our results support the use of southern African medicinal plants as anti-inflammatory remedies and provide an insight into the immunomodulatory mechanisms of action.
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Affiliation(s)
- Gugulethu P Khumalo
- Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia
| | - Wendy Loa-Kum-Cheung
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Nathan, QLD, 4111, Australia
| | - Ben-Erik Van Wyk
- Department of Botany and Plant Biotechnology, University of Johannesburg, Auckland Park, P.O. Box 524, Johannesburg, 2006, South Africa
| | - Yunjiang Feng
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Nathan, QLD, 4111, Australia
| | - Ian E Cock
- Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia.
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, QLD, 4111, Australia.
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11
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Huang L, Yang S, Yu X, Fang F, Zhu L, Wang L, Zhang X, Yang C, Qian Q, Zhu T. Association of different cell types and inflammation in early acne vulgaris. Front Immunol 2024; 15:1275269. [PMID: 38357543 PMCID: PMC10864487 DOI: 10.3389/fimmu.2024.1275269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/17/2024] [Indexed: 02/16/2024] Open
Abstract
Acne vulgaris, one of the most common skin diseases, is a chronic cutaneous inflammation of the upper pilosebaceous unit (PSU) with complex pathogenesis. Inflammation plays a central role in the pathogenesis of acne vulgaris. During the inflammatory process, the innate and adaptive immune systems are coordinately activated to induce immune responses. Understanding the infiltration and cytokine secretion of differential cells in acne lesions, especially in the early stages of inflammation, will provide an insight into the pathogenesis of acne. The purpose of this review is to synthesize the association of different cell types with inflammation in early acne vulgaris and provide a comprehensive understanding of skin inflammation and immune responses.
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Affiliation(s)
- Lei Huang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shuyun Yang
- Department of Dermatology, The People’s Hospital of Baoshan, Baoshan, Yunnan, China
| | - Xiuqin Yu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Fumin Fang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Liping Zhu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lu Wang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaoping Zhang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Changzhi Yang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qihong Qian
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Tingting Zhu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
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12
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Mihaescu G, Chifiriuc MC, Filip R, Bleotu C, Ditu LM, Constantin M, Cristian RE, Grigore R, Bertesteanu SV, Bertesteanu G, Vrancianu CO. Role of interferons in the antiviral battle: from virus-host crosstalk to prophylactic and therapeutic potential in SARS-CoV-2 infection. Front Immunol 2024; 14:1273604. [PMID: 38288121 PMCID: PMC10822962 DOI: 10.3389/fimmu.2023.1273604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 12/29/2023] [Indexed: 01/31/2024] Open
Abstract
Mammalians sense antigenic messages from infectious agents that penetrate the respiratory and digestive epithelium, as well as signals from damaged host cells through membrane and cytosolic receptors. The transduction of these signals triggers a personalized response, depending on the nature of the stimulus and the host's genetics, physiological condition, and comorbidities. Interferons (IFNs) are the primary effectors of the innate immune response, and their synthesis is activated in most cells within a few hours after pathogen invasion. IFNs are primarily synthesized in infected cells, but their anti-infective effect is extended to the neighboring cells by autocrine and paracrine action. The emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic in 2019 was a stark reminder of the potential threat posed by newly emerging viruses. This pandemic has also triggered an overwhelming influx of research studies aiming to unveil the mechanisms of protective versus pathogenic host immune responses induced by SARS-CoV-2. The purpose of this review is to describe the role of IFNs as vital players in the battle against SARS-CoV-2 infection. We will briefly characterize and classify IFNs, present the inductors of IFN synthesis, their sensors, and signaling pathways, and then discuss the role of IFNs in controlling the evolution of SARS-CoV-2 infection and its clinical outcome. Finally, we will present the perspectives and controversies regarding the prophylactic and therapeutic potential of IFNs in SARS-CoV-2 infection.
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Affiliation(s)
- Grigore Mihaescu
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Department of Life, Medical and Agricultural Sciences, Biological Sciences Section, Academy of Romanian Scientists, Bucharest, Romania
| | - Roxana Filip
- Faculty of Medicine and Biological Sciences, Stefan cel Mare University of Suceava, Suceava, Romania
- Microbiology Department, Suceava Emergency County Hospital, Suceava, Romania
| | - Coralia Bleotu
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Cellular and Molecular Pathology Department, Stefan S. Nicolau Institute of Virology, Bucharest, Romania
| | - Lia Mara Ditu
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Marian Constantin
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Institute of Biology of Romanian Academy, Bucharest, Romania
| | - Roxana-Elena Cristian
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Raluca Grigore
- ENT Department, University of Medicine and Pharmacy Carol Davila and Coltea Clinical Hospital, Bucharest, Romania
| | - Serban Vifor Bertesteanu
- ENT Department, University of Medicine and Pharmacy Carol Davila and Coltea Clinical Hospital, Bucharest, Romania
| | - Gloria Bertesteanu
- ENT Department, University of Medicine and Pharmacy Carol Davila and Coltea Clinical Hospital, Bucharest, Romania
| | - Corneliu Ovidiu Vrancianu
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
- DANUBIUS Department, National Institute of Research and Development for Biological Sciences, Bucharest, Romania
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13
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Zhou P, Liu D, Zhang Q, Wu W, Chen D, Luo R. Antiviral effects of duck type I and type III interferons against Duck Tembusu virus in vitro and in vivo. Vet Microbiol 2023; 287:109889. [PMID: 37913673 DOI: 10.1016/j.vetmic.2023.109889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/17/2023] [Accepted: 10/12/2023] [Indexed: 11/03/2023]
Abstract
Duck Tembusu Virus (DTMUV) is a newly emerging avian flavivirus that causes substantial economic losses to the duck industry in Asia by causing severe egg drop syndrome and fatal encephalitis in domestic ducks. During viral replication, host cells recognize the RNA structures produced by DTMUV, which triggers the production of interferons (IFNs) to inhibit viral replication. However, the function of duck type I and type III IFNs in inhibiting DTMUV infection remains largely unknown. In this study, we expressed and purified recombinant duck IFN-β (duIFN-β) and IFN-λ (duIFN-λ) in Escherichia coli and evaluated their antiviral activity against vesicular stomatitis virus (VSV). Furthermore, we found that both duIFN-β and duIFN-λ activated the ISRE promoter and induced the expression of ZAP, OAS, and RNaseL in duck embryo fibroblasts (DEFs). Notably, duIFN-β showed faster and more potent induction of ISGs in vitro and in vivo compared to duIFN-λ. Moreover, both duIFN-β and duIFN-λ showed high potential to inhibit DTMUV infection in DEFs, with duIFN-β demonstrating better antiviral efficacy than duIFN-λ against DTMUV in ducks. In conclusion, our results revealed that both duIFN-β and duIFN-λ can induce ISGs production and exhibit significant antiviral activity against DTMUV in vitro and in vivo, providing new insights for the development of antiviral therapeutic strategies in ducks.
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Affiliation(s)
- Peng Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Dejian Liu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Qingxiang Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Wanrong Wu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Dong Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Rui Luo
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China.
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14
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Eskeland S, Bø-Granquist EG, Stuen S, Lybeck K, Wilhelmsson P, Lindgren PE, Makvandi-Nejad S. Temporal patterns of gene expression in response to inoculation with a virulent Anaplasma phagocytophilum strain in sheep. Sci Rep 2023; 13:20399. [PMID: 37989861 PMCID: PMC10663591 DOI: 10.1038/s41598-023-47801-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/18/2023] [Indexed: 11/23/2023] Open
Abstract
The aim of this study was to characterize the gene expression of host immune- and cellular responses to a Norwegian virulent strain of Anaplasma phagocytophilum, the cause of tick-borne fever in sheep. Ten sheep were intravenously inoculated with a live virulent strain of A. phagocytophilum. Clinical-, observational-, hematological data as well as bacterial load, flow cytometric cell count data from peripheral blood mononuclear cells and host's gene expression post infection was analysed. The transcriptomic data were assessed for pre-set time points over the course of 22 days following the inoculation. Briefly, all inoculated sheep responded with clinical signs of infection 3 days post inoculation and onwards with maximum bacterial load observed on day 6, consistent with tick-borne fever. On days, 3-8, the innate immune responses and effector processes such as IFN1 signaling pathways and cytokine mediated signaling pathways were observed. Several pathways associated with the adaptive immune responses, namely T-cell activation, humoral immune responses, B-cell activation, and T- and B-cell differentiation dominated on the days of 8, 10 and 14. Flow-cytometric analysis of the PBMCs showed a reduction in CD4+CD25+ cells on day 10 and 14 post-inoculation and a skewed CD4:CD8 ratio indicating a reduced activation and proliferation of CD4-T-cells. The genes of important co-stimulatory molecules such as CD28 and CD40LG, important in T- and B-cell activation and proliferation, did not significantly change or experienced downregulation throughout the study. The absence of upregulation of several co-stimulatory molecules might be one possible explanation for the low activation and proliferation of CD4-T-cells during A. phagocytophilum infection, indicating a suboptimal CD4-T-cell response. The upregulation of T-BET, EOMES and IFN-γ on days 8-14 post inoculation, indicates a favoured CD4 Th1- and CD8-response. The dynamics and interaction between CD4+CD25+ and co-stimulatory molecules such as CD28, CD80, CD40 and CD40LG during infection with A. phagocytophilum in sheep needs further investigation in the future.
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Affiliation(s)
- Sveinung Eskeland
- Department of Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Elizabeth Stephansens Vei 15, 1433, Ås, Norway.
| | - Erik G Bø-Granquist
- Department of Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Elizabeth Stephansens Vei 15, 1433, Ås, Norway
| | - Snorre Stuen
- Department of Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Kyrkjevegen 332/334, 4325, Sandnes, Norway
| | - Kari Lybeck
- Norwegian Veterinary Institute, Elizabeth Stephansens Vei 1, 1433, Ås, Norway
| | - Peter Wilhelmsson
- Division of Clinical Microbiology, Laboratory Medicine, National Reference Laboratory for Borrelia and Other Tick-Borne Bacteria, Region Jönköping County, 553 05, Jönköping, Sweden
| | - Per-Eric Lindgren
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, 581 83, Linköping, Sweden
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15
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Sarapultsev A, Gusev E, Komelkova M, Utepova I, Luo S, Hu D. JAK-STAT signaling in inflammation and stress-related diseases: implications for therapeutic interventions. MOLECULAR BIOMEDICINE 2023; 4:40. [PMID: 37938494 PMCID: PMC10632324 DOI: 10.1186/s43556-023-00151-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/26/2023] [Indexed: 11/09/2023] Open
Abstract
The Janus kinase-signal transducer and transcription activator pathway (JAK-STAT) serves as a cornerstone in cellular signaling, regulating physiological and pathological processes such as inflammation and stress. Dysregulation in this pathway can lead to severe immunodeficiencies and malignancies, and its role extends to neurotransduction and pro-inflammatory signaling mechanisms. Although JAK inhibitors (Jakinibs) have successfully treated immunological and inflammatory disorders, their application has generally been limited to diseases with similar pathogenic features. Despite the modest expression of JAK-STAT in the CNS, it is crucial for functions in the cortex, hippocampus, and cerebellum, making it relevant in conditions like Parkinson's disease and other neuroinflammatory disorders. Furthermore, the influence of the pathway on serotonin receptors and phospholipase C has implications for stress and mood disorders. This review expands the understanding of JAK-STAT, moving beyond traditional immunological contexts to explore its role in stress-related disorders and CNS function. Recent findings, such as the effectiveness of Jakinibs in chronic conditions such as rheumatoid arthritis, expand their therapeutic applicability. Advances in isoform-specific inhibitors, including filgotinib and upadacitinib, promise greater specificity with fewer off-target effects. Combination therapies, involving Jakinibs and monoclonal antibodies, aiming to enhance therapeutic specificity and efficacy also give great hope. Overall, this review bridges the gap between basic science and clinical application, elucidating the complex influence of the JAK-STAT pathway on human health and guiding future interventions.
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Affiliation(s)
- Alexey Sarapultsev
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080, Chelyabinsk, Russia.
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia.
| | - Evgenii Gusev
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080, Chelyabinsk, Russia
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia
| | - Maria Komelkova
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080, Chelyabinsk, Russia
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia
| | - Irina Utepova
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 620002, Ekaterinburg, Russian Federation
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Key Laboratory of Biological Targeted Therapy, The Ministry of Education, Wuhan, 430022, China
- Clinical Research Center of Cancer Immunotherapy, Hubei Wuhan, 430022, China
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16
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Feng X, Li M, Lin Z, Lu Y, Zhuang Y, Lei J, Liu X, Zhao H. Tetramethylpyrazine promotes axonal remodeling and modulates microglial polarization via JAK2-STAT1/3 and GSK3-NFκB pathways in ischemic stroke. Neurochem Int 2023; 170:105607. [PMID: 37657766 DOI: 10.1016/j.neuint.2023.105607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/18/2023] [Accepted: 08/30/2023] [Indexed: 09/03/2023]
Abstract
Ischemic stroke results in demyelination that underlies neurological disfunction. Promoting oligodendrogenesis will rescue the injured axons and accelerate remyelination after stroke. Microglia react to ischemia/hypoxia and polarize to M1/M2 phenotypes influencing myelin injury and repair. Tetramethylpyrazine (TMP) has neuroprotective effects in treating cerebrovascular disorders. This study aims to evaluate whether TMP promotes the renovation of damaged brain tissues especially on remyelination and modulates microglia phenotypes following ischemic stroke. Here magnetic resonance imaging (MRI)-diffusion tensor imaging (DTI) and histopathological evaluation are performed to characterize the process of demyelination and remyelination. Immunofluorescence staining is used to prove oligodendrogenesis and microglial polarization. Western blotting is conducted to examine interleukin (IL)-6, IL-10, transforming growth factor β (TGF-β) and Janus protein tyrosine kinase (JAK) 2-signal transducer and activator of transcription (STAT) 1/3-glycogen synthase kinase (GSK) 3-nuclear transcription factor κB (NFκB) signals. Results show TMP alleviates the injury of axons and myelin sheath, increases NG2+, Ki67+/NG2+, CNPase+, Ki67+/CNPase+, Iba1+/Arg-1+ cells and decreases Iba1+ and Iba1+/CD16+ cells in periinfarctions of rats. Particularly, TMP downregulates IL-6 and upregulates IL-10 and TGF-β expressions, besides, enhances JAK2-STAT3 and suppresses STAT1-GSK3-NFκB activation in middle cerebral artery occlusion (MCAo) rats. Then we demonstrate that TMP reverses M1/M2 phenotype via JAK2-STAT1/3 and GSK3-NFκB pathways in lipopolysaccharide (LPS) plus interferon-γ (IFN-γ)-stimulated BV2 microglia. Blocking JAK2 with AG490 counteracts TMP's facilitation on M2 polarization of microglia. This study warrants the promising therapy for stroke with TMP treatment.
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Affiliation(s)
- Xuefeng Feng
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230031, China; School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Mingcong Li
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Ziyue Lin
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Yuming Zhuang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Jianfeng Lei
- Medical Imaging Laboratory of Core Facility Center, Capital Medical University, Beijing, 100069, China
| | - Xiaonan Liu
- Department of Laboratory Animal, Capital Medical University, Beijing, 100069, China
| | - Hui Zhao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China.
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17
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Wang T, Liu W, Shen Q, Tao R, Li C, Shen Q, Lin Y, Huang Y, Yang L, Xie G, Bai J, Li R, Wang L, Tao K, Yin Y. Combination of PARP inhibitor and CDK4/6 inhibitor modulates cGAS/STING-dependent therapy-induced senescence and provides "one-two punch" opportunity with anti-PD-L1 therapy in colorectal cancer. Cancer Sci 2023; 114:4184-4201. [PMID: 37702298 PMCID: PMC10637067 DOI: 10.1111/cas.15961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/14/2023] Open
Abstract
Although PARP inhibitor (PARPi) has been proven to be a promising anticancer drug in cancer patients harboring BRCA1/2 mutation, it provides limited clinical benefit in colorectal cancer patients with a low prevalence of BRCA1/2 mutations. In our study, we found PARPi talazoparib significantly induced cellular senescence via inhibiting p53 ubiquitination and activating p21. Furthermore, CDK4/6i palbociclib amplified this therapy-induced senescence (TIS) in vitro and in vivo. Mechanistically, talazoparib and palbociclib combination induced senescence-associated secretory phenotype (SASP), and characterization of SASP components revealed type I interferon (IFN)-related mediators, which were amplified by cGAS/STING signaling. More importantly, RNA sequencing data indicated that combination therapy activated T cell signatures and combination treatment transformed the tumor microenvironment (TME) into a more antitumor state with increased CD8 T cells and natural killer (NK) cells and decreased macrophages and granulocytic myeloid-derived suppressor cells (G-MDSCs). Moreover, clearance of the TIS cells by αPD-L1 promoted survival in immunocompetent mouse colorectal cancer models. Collectively, we elucidated the synergistic antitumor and immunomodulatory mechanisms of the talazoparib-palbociclib combination. Further combination with PD-L1 antibody might be a promising "one-two punch" therapeutic strategy for colorectal cancer patients.
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Affiliation(s)
- Tao Wang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Department of Gastrointestinal Surgery, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Weizhen Liu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Qian Shen
- Department of Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Ruikang Tao
- Center for Biomolecular Science and EngineeringUniversity of California Santa CruzSanta CruzCaliforniaUSA
| | - Chengguo Li
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Qian Shen
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yao Lin
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yongzhou Huang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lei Yang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Gengchen Xie
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Jie Bai
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Ruidong Li
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lulu Wang
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of PharmacyTianjin Medical UniversityTianjinChina
| | - Kaixiong Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yuping Yin
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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18
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Laberiano-Fernandez C, Baldavira CM, Machado-Rugolo J, Tamegnon A, Pandurengan RK, Ab’Saber AM, Balancin ML, Takagaki TY, Nagai MA, Capelozzi VL, Parra ER. The Immunological Landscape of M1 and M2 Macrophages and Their Spatial Distribution in Patients with Malignant Pleural Mesothelioma. Cancers (Basel) 2023; 15:5116. [PMID: 37958292 PMCID: PMC10650059 DOI: 10.3390/cancers15215116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/12/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Several tumor-associated macrophages (TAMs) have shown promise as prognosticators in cancer. Our aim was to validate the importance of TAMs in malignant pleural mesothelioma (MPM) using a two-stage design. METHODS We explored The Cancer Genome Atlas (TCGA-MESO) to select immune-relevant macrophage genes in MPM, including M1/M2 markers, as a discovery cohort. This computational cohort was used to create a multiplex immunofluorescence panel. Moreover, a cohort of 68 samples of MPM in paraffin blocks was used to validate the macrophage phenotypes and the co-localization and spatial distribution of these immune cells within the TME and the stromal or tumor compartments. RESULTS The discovery cohort revealed six immune-relevant macrophage genes (CD68, CD86, CD163, CD206, ARG1, CD274), and complementary genes were differentially expressed by M1 and M2 phenotypes with distinct roles in the tumor microenvironment and were associated with the prognosis. In addition, immune-suppressed MPMs with increased enrichment of CD68, CD86, and CD163 genes and high densities of M2 macrophages expressing CD163 and CD206 proteins were associated with worse overall survival (OS). Interestingly, below-median distances from malignant cells to specific M2a and M2c macrophages were associated with worse OS, suggesting an M2 macrophage-driven suppressive component in these tumors. CONCLUSIONS The interactions between TAMs in situ and, particularly, CD206+ macrophages are highly relevant to patient outcomes. High-resolution technology is important for identifying the roles of macrophage populations in tissue specimens and identifying potential therapeutic candidates in MPM.
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Affiliation(s)
- Caddie Laberiano-Fernandez
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (C.L.-F.); (A.T.); (R.K.P.)
| | - Camila Machado Baldavira
- Department of Pathology, Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil; (C.M.B.); (J.M.-R.); (A.M.A.); (M.L.B.); (V.L.C.)
| | - Juliana Machado-Rugolo
- Department of Pathology, Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil; (C.M.B.); (J.M.-R.); (A.M.A.); (M.L.B.); (V.L.C.)
| | - Auriole Tamegnon
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (C.L.-F.); (A.T.); (R.K.P.)
| | - Renganayaki Krishna Pandurengan
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (C.L.-F.); (A.T.); (R.K.P.)
| | - Alexandre Muxfeldt Ab’Saber
- Department of Pathology, Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil; (C.M.B.); (J.M.-R.); (A.M.A.); (M.L.B.); (V.L.C.)
- Division of Pneumology, Instituto do Coração (Incor), Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil;
| | - Marcelo Luiz Balancin
- Department of Pathology, Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil; (C.M.B.); (J.M.-R.); (A.M.A.); (M.L.B.); (V.L.C.)
- Division of Pneumology, Instituto do Coração (Incor), Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil;
| | - Teresa Yae Takagaki
- Division of Pneumology, Instituto do Coração (Incor), Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil;
| | - Maria Aparecida Nagai
- Department of Radiology and Oncology, Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil;
- Laboratory of Molecular Genetics, Center for Translational Research in Oncology, Cancer Institute of Sao Paulo, Sao Paulo 01246-903, Brazil
| | - Vera Luiza Capelozzi
- Department of Pathology, Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil; (C.M.B.); (J.M.-R.); (A.M.A.); (M.L.B.); (V.L.C.)
- Division of Pneumology, Instituto do Coração (Incor), Medical School, University of Sao Paulo, Sao Paulo 01246-903, Brazil;
| | - Edwin Roger Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (C.L.-F.); (A.T.); (R.K.P.)
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19
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Finney GE, Hargrave KE, Pingen M, Purnell T, Todd D, MacDonald F, Worrell JC, MacLeod MKL. Triphasic production of IFN γ by innate and adaptive lymphocytes following influenza A virus infection. DISCOVERY IMMUNOLOGY 2023; 2:kyad014. [PMID: 37842651 PMCID: PMC10568397 DOI: 10.1093/discim/kyad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 10/17/2023]
Abstract
Interferon gamma (IFNγ) is a potent antiviral cytokine that can be produced by many innate and adaptive immune cells during infection. Currently, our understanding of which cells produce IFNγ and where they are located at different stages of an infection is limited. We have used reporter mice to investigate in vivo expression of Ifnγ mRNA in the lung and secondary lymphoid organs during and following influenza A virus (IAV) infection. We observed a triphasic production of Ifnγ expression. Unconventional T cells and innate lymphoid cells, particularly NK cells, were the dominant producers of early Ifnγ, while CD4 and CD8 T cells were the main producers by day 10 post-infection. Following viral clearance, some memory CD4 and CD8 T cells continued to express Ifnγ in the lungs and draining lymph node. Interestingly, Ifnγ production by lymph node natural killer (NK), NKT, and innate lymphoid type 1 cells also continued to be above naïve levels, suggesting memory-like phenotypes for these cells. Analysis of the localization of Ifnγ+ memory CD4 and CD8 T cells demonstrated that cytokine+ T cells were located near airways and in the lung parenchyma. Following a second IAV challenge, lung IAV-specific CD8 T cells rapidly increased their expression of Ifnγ while CD4 T cells in the draining lymph node increased their Ifnγ response. Together, these data suggest that Ifnγ production fluctuates based on cellular source and location, both of which could impact subsequent immune responses.
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Affiliation(s)
- George E Finney
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Kerrie E Hargrave
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Marieke Pingen
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Thomas Purnell
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - David Todd
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Freya MacDonald
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Julie C Worrell
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Megan K L MacLeod
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
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20
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Mossine VV, Waters JK, Sun GY, Gu Z, Mawhinney TP. Microglia Signaling Pathway Reporters Unveiled Manganese Activation of the Interferon/STAT1 Pathway and Its Mitigation by Flavonoids. Mol Neurobiol 2023; 60:4679-4692. [PMID: 37140843 PMCID: PMC10293393 DOI: 10.1007/s12035-023-03369-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/25/2023] [Indexed: 05/05/2023]
Abstract
Neuroinflammatory responses to neurotoxic manganese (Mn) in CNS have been associated with the Mn-induced Parkinson-like syndromes. However, the framework of molecular mechanisms contributing to manganism is still unclear. Using an in vitro neuroinflammation model based on the insulated signaling pathway reporter transposon constructs stably transfected into a murine BV-2 microglia line, we tested effects of manganese (II) together with a set of 12 metal salts on the transcriptional activities of the NF-κB, activator protein-1 (AP-1), signal transducer and activator of transcription 1 (STAT1), STAT1/STAT2, STAT3, Nrf2, and metal-responsive transcription factor-1 (MTF-1) via luciferase assay, while concatenated destabilized green fluorescent protein expression provided for simultaneous evaluation of cellular viability. This experiment revealed specific and strong responses to manganese (II) in reporters of the type I and type II interferon-induced signaling pathways, while weaker activation of the NF-κB in the microglia was detected upon treatment of cells with Mn(II) and Ba(II). There was a similarity between Mn(II) and interferon-γ in the temporal STAT1 activation profile and in their antagonism to bacterial LPS. Sixty-four natural and synthetic flavonoids differentially affected both cytotoxicity and the pro-inflammatory activity of Mn (II) in the microglia. Whereas flavan-3-ols, flavanones, flavones, and flavonols were cytoprotective, isoflavones enhanced the cytotoxicity of Mn(II). Furthermore, about half of the tested flavonoids at 10-50 μM could attenuate both basal and 100-200 μM Mn(II)-induced activity at the gamma-interferon activated DNA sequence (GAS) in the cells, suggesting no critical roles for the metal chelation or antioxidant activity in the protective potential of flavonoids against manganese in microglia. In summary, results of the study identified Mn as a specific elicitor of the interferon-dependent pathways that can be mitigated by dietary polyphenols.
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Affiliation(s)
- Valeri V Mossine
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA.
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, MO, 65211, USA.
| | - James K Waters
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, MO, 65211, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Thomas P Mawhinney
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
- Agriculture Experiment Station Chemical Laboratories, University of Missouri, Columbia, MO, 65211, USA
- Department of Child Health, University of Missouri, Columbia, MO, 65211, USA
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21
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Kumar P, Mathew S, Gamage R, Bodkin F, Doyle K, Rossetti I, Wagnon I, Zhou X, Raju R, Gyengesi E, Münch G. From the Bush to the Brain: Preclinical Stages of Ethnobotanical Anti-Inflammatory and Neuroprotective Drug Discovery-An Australian Example. Int J Mol Sci 2023; 24:11086. [PMID: 37446262 DOI: 10.3390/ijms241311086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/29/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023] Open
Abstract
The Australian rainforest is a rich source of medicinal plants that have evolved in the face of dramatic environmental challenges over a million years due to its prolonged geographical isolation from other continents. The rainforest consists of an inherent richness of plant secondary metabolites that are the most intense in the rainforest. The search for more potent and more bioavailable compounds from other plant sources is ongoing, and our short review will outline the pathways from the discovery of bioactive plants to the structural identification of active compounds, testing for potency, and then neuroprotection in a triculture system, and finally, the validation in an appropriate neuro-inflammatory mouse model, using some examples from our current research. We will focus on neuroinflammation as a potential treatment target for neurodegenerative diseases including multiple sclerosis (MS), Parkinson's (PD), and Alzheimer's disease (AD) for these plant-derived, anti-inflammatory molecules and highlight cytokine suppressive anti-inflammatory drugs (CSAIDs) as a better alternative to conventional nonsteroidal anti-inflammatory drugs (NSAIDs) to treat neuroinflammatory disorders.
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Affiliation(s)
- Payaal Kumar
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Shintu Mathew
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Rashmi Gamage
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Frances Bodkin
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Kerrie Doyle
- Indigenous Health Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Ilaria Rossetti
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Ingrid Wagnon
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia
| | - Ritesh Raju
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Erika Gyengesi
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
| | - Gerald Münch
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
- NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia
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22
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Kim A, Ortega-Ribera M, McMullen MR, Bellar A, Taiwo M, Pathak V, Streem D, Dasarathy J, Welch N, Dasarathy S, Vachharajani V, Nagy LE. Altered Anti-Viral Immune Responses in Monocytes in Overweight Heavy Drinkers. iScience 2023; 26:107133. [PMID: 37361874 PMCID: PMC10268809 DOI: 10.1016/j.isci.2023.107133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/08/2023] [Accepted: 06/12/2023] [Indexed: 06/28/2023] Open
Abstract
Alcohol abuse causes increased susceptibility to respiratory syndromes like bacterial pneumonia and viral infections like SARS-CoV-2. Heavy drinkers (HD) are at higher risk of severe COVID-19 if they are also overweight, yet the molecular mechanisms are unexplored. Single-cell RNA-seq (scRNA-seq) was performed on peripheral blood mononuclear cells from lean or overweight HD and healthy controls (HC) after challenge with a dsRNA homopolymer (PolyI:C) to mimic a viral infection and/or with lipopolysaccharide (LPS). All monocyte populations responded to both PolyI:C and LPS with pro-inflammatory gene expression. However, expression of interferon stimulated genes, essential for inhibiting viral pathogenesis, was greatly reduced in overweight patients. Interestingly, the number of upregulated genes in response to PolyI:C challenge was far greater in monocytes from HD compared to HC, including much stronger pro-inflammatory cytokine and interferon-γ signaling responses. These results suggest increased body weight reduced anti-viral responses while heavy drinking increased pro-inflammatory cytokines.
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Affiliation(s)
- Adam Kim
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Medicine, University of Connecticut Health Center, Farmington, CT
| | - Martí Ortega-Ribera
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Megan R McMullen
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Annette Bellar
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Moyinoluwa Taiwo
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - Vai Pathak
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
| | - David Streem
- - Lutheran Hospital, Cleveland Clinic, Cleveland, OH
| | | | - Nicole Welch
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH
- - Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH
| | - Srinivasan Dasarathy
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH
- - Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH
| | - Vidula Vachharajani
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Critical Care Medicine Cleveland Clinic Respiratory Institute, Cleveland, OH
| | - Laura E Nagy
- - Northern Ohio Alcohol Center, Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
- - Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH
- - Department of Molecular Medicine, Case Western Reserve University, Cleveland, OH
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23
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Londoño AF, Scorpio DG, Dumler JS. Innate immunity in rickettsial infections. Front Cell Infect Microbiol 2023; 13:1187267. [PMID: 37228668 PMCID: PMC10203653 DOI: 10.3389/fcimb.2023.1187267] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/19/2023] [Indexed: 05/27/2023] Open
Abstract
Rickettsial agents are a diverse group of alpha-proteobacteria within the order Rickettsiales, which possesses two families with human pathogens, Rickettsiaceae and Anaplasmataceae. These obligate intracellular bacteria are most frequently transmitted by arthropod vectors, a first step in the pathogens' avoidance of host cell defenses. Considerable study of the immune responses to infection and those that result in protective immunity have been conducted. Less study has focused on the initial events and mechanism by which these bacteria avoid the innate immune responses of the hosts to survive within and propagate from host cells. By evaluating the major mechanisms of evading innate immunity, a range of similarities among these bacteria become apparent, including mechanisms to escape initial destruction in phagolysosomes of professional phagocytes, those that dampen the responses of innate immune cells or subvert signaling and recognition pathways related to apoptosis, autophagy, proinflammatory responses, and mechanisms by which these microbes attach to and enter cells or those molecules that trigger the host responses. To illustrate these principles, this review will focus on two common rickettsial agents that occur globally, Rickettsia species and Anaplasma phagocytophilum.
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Affiliation(s)
- Andrés F. Londoño
- The Henry M. Jackson Foundation for Advancement in Military Medicine, Bethesda, MD, United States
- Department of Pathology, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Diana G. Scorpio
- Host-Pathogen Interactions Program, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - J. Stephen Dumler
- Department of Pathology, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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24
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Derr AG, Arowosegbe A, Satish B, Redick SD, Qaisar N, Guo Z, Vanderleeden E, Trombly MI, Baer CE, Harlan DM, Greiner DL, Garber M, Wang JP. An Early Islet Transcriptional Signature Is Associated With Local Inflammation in Autoimmune Diabetes. Diabetes 2023; 72:261-274. [PMID: 36346618 PMCID: PMC9871196 DOI: 10.2337/db22-0521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022]
Abstract
Identifying the early islet cellular processes of autoimmune type 1 diabetes (T1D) in humans is challenging given the absence of symptoms during this period and the inaccessibility of the pancreas for sampling. In this article, we study temporal events in pancreatic islets in LEW.1WR1 rats, in which autoimmune diabetes can be induced with virus infection, by performing transcriptional analysis of islets harvested during the prediabetic period. Single-cell RNA-sequencing and differential expression analyses of islets from prediabetic rats reveal subsets of β- and α-cells under stress as evidenced by heightened expression, over time, of a transcriptional signature characterized by interferon-stimulated genes, chemokines including Cxcl10, major histocompatibility class I, and genes for the ubiquitin-proteasome system. Mononuclear phagocytes show increased expression of inflammatory markers. RNA-in situ hybridization of rat pancreatic tissue defines the spatial distribution of Cxcl10+ β- and α-cells and their association with CD8+ T cell infiltration, a hallmark of insulitis and islet destruction. Our studies define early islet transcriptional events during immune cell recruitment to islets and reveal spatial associations between stressed β- and α-cells and immune cells. Insights into such early processes can assist in the development of therapeutic and prevention strategies for T1D.
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Affiliation(s)
- Alan G. Derr
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
| | - Adediwura Arowosegbe
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Basanthi Satish
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Sambra D. Redick
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Natasha Qaisar
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Zhiru Guo
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Emma Vanderleeden
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Melanie I. Trombly
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Christina E. Baer
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA
| | - David M. Harlan
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Dale L. Greiner
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Manuel Garber
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA
- Program in Bioinformatics and Integrative Medicine, University of Massachusetts Chan Medical School, Worcester, MA
| | - Jennifer P. Wang
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA
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25
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Neural-Cell-Intrinsic NF-κB Signaling Enhances Reovirus Virulence. J Virol 2023; 97:e0144222. [PMID: 36541803 PMCID: PMC9888206 DOI: 10.1128/jvi.01442-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Pathological effects of apoptosis associated with viral infections of the central nervous system are an important cause of morbidity and mortality. Reovirus is a neurotropic virus that causes apoptosis in neurons, leading to lethal encephalitis in newborn mice. Reovirus-induced encephalitis is diminished in mice with germ line ablation of NF-κB subunit p50. It is not known whether the proapoptotic function of NF-κB is mediated by neural-cell-intrinsic (neural-intrinsic) processes, NF-κB-regulated cytokine production by inflammatory cells, or a combination of both. To determine the contribution of cell type-specific NF-κB signaling in reovirus-induced neuronal injury, we established mice that lack NF-κB p65 expression in neural cells using the Cre/loxP recombination system. Following intracranial inoculation of reovirus, 50% of wild-type (WT) mice succumbed to infection, whereas more than 90% of mice lacking neural cell NF-κB p65 (Nsp65-/-) survived. While viral loads in brains of WT and Nsp65-/- mice were comparable, histological analysis revealed that reovirus antigen-positive areas in the brains of WT mice displayed increased immunoreactivity for cleaved caspase-3, a marker of apoptosis, relative to Nsp65-/- mice. These data suggest that neural-intrinsic NF-κB-dependent factors are essential mediators of reovirus neurovirulence. RNA sequencing analysis of reovirus-infected brain cortices of WT and Nsp65-/- mice suggests that NF-κB activation in neuronal cells upregulates genes involved in innate immunity, inflammation, and cell death following reovirus infection. A better understanding of the contribution of cell type-specific NF-κB-dependent signaling to viral neuropathogenesis could inform development of new therapeutics that target and protect highly vulnerable cell populations. IMPORTANCE Viral encephalitis contributes to illness and death in children and adults worldwide and has limited treatment options. Identifying common host factors upregulated by neurotropic viruses can enhance an understanding of virus-induced neuropathogenesis and aid in development of therapeutics. Although many neurotropic viruses activate NF-κB during infection, mechanisms by which NF-κB regulates viral neuropathogenesis and contributes to viral encephalitis are not well understood. We established mice in which NF-κB expression is ablated in neural tissue to study the function of NF-κB in reovirus neurovirulence and identify genes activated by NF-κB in response to reovirus infection in the central nervous system. Encephalitis following reovirus infection was dampened in mice lacking neural cell NF-κB. Reovirus induced a chemokine profile in the brain that was dependent on NF-κB signaling and was similar to chemokine profiles elicited by other neurotropic viruses. These data suggest common underlying mechanisms of encephalitis caused by neurotropic viruses and potentially shared therapeutic targets.
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26
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Zhu B, Chen S, Bai Y, Chen H, Liao G, Mukherjee N, Vazquez G, McIlwain DR, Tzankov A, Lee IT, Matter MS, Goltsev Y, Ma Z, Nolan GP, Jiang S. Robust single-cell matching and multimodal analysis using shared and distinct features. Nat Methods 2023; 20:304-315. [PMID: 36624212 PMCID: PMC9911356 DOI: 10.1038/s41592-022-01709-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 10/31/2022] [Indexed: 01/10/2023]
Abstract
The ability to align individual cellular information from multiple experimental sources is fundamental for a systems-level understanding of biological processes. However, currently available tools are mainly designed for single-cell transcriptomics matching and integration, and generally rely on a large number of shared features across datasets for cell matching. This approach underperforms when applied to single-cell proteomic datasets due to the limited number of parameters simultaneously accessed and lack of shared markers across these experiments. Here, we introduce a cell-matching algorithm, matching with partial overlap (MARIO) that accounts for both shared and distinct features, while consisting of vital filtering steps to avoid suboptimal matching. MARIO accurately matches and integrates data from different single-cell proteomic and multimodal methods, including spatial techniques and has cross-species capabilities. MARIO robustly matched tissue macrophages identified from COVID-19 lung autopsies via codetection by indexing imaging to macrophages recovered from COVID-19 bronchoalveolar lavage fluid by cellular indexing of transcriptomes and epitopes by sequencing, revealing unique immune responses within the lung microenvironment of patients with COVID.
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Affiliation(s)
- Bokai Zhu
- grid.168010.e0000000419368956Department of Microbiology and Immunology, Stanford University, Stanford, CA USA ,grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Shuxiao Chen
- grid.25879.310000 0004 1936 8972Department of Statistics and Data Science, The Wharton School, University of Pennsylvania, PA, USA
| | - Yunhao Bai
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA ,grid.168010.e0000000419368956Department of Chemistry, Stanford University, Stanford, CA USA
| | - Han Chen
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Guanrui Liao
- grid.239395.70000 0000 9011 8547Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA USA
| | - Nilanjan Mukherjee
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Gustavo Vazquez
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - David R. McIlwain
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Alexandar Tzankov
- grid.6612.30000 0004 1937 0642Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Ivan T. Lee
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Matthias S. Matter
- grid.6612.30000 0004 1937 0642Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Yury Goltsev
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Zongming Ma
- Department of Statistics and Data Science, The Wharton School, University of Pennsylvania, PA, USA.
| | - Garry P. Nolan
- grid.168010.e0000000419368956Department of Pathology, Stanford University, Stanford, CA USA
| | - Sizun Jiang
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA. .,Department of Pathology, Dana Farber Cancer Institute, Boston, MA, USA. .,Broad Institute of Harvard and MIT, Cambridge, MA, USA.
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Lai MW, Chow N, Checco A, Kunar B, Redmond D, Rafii S, Rabbany SY. Systems Biology Analysis of Temporal Dynamics That Govern Endothelial Response to Cyclic Stretch. Biomolecules 2022; 12:biom12121837. [PMID: 36551265 PMCID: PMC9775567 DOI: 10.3390/biom12121837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022] Open
Abstract
Endothelial cells in vivo are subjected to a wide array of mechanical stimuli, such as cyclic stretch. Notably, a 10% stretch is associated with an atheroprotective endothelial phenotype, while a 20% stretch is associated with an atheroprone endothelial phenotype. Here, a systems biology-based approach is used to present a comprehensive overview of the functional responses and molecular regulatory networks that characterize the transition from an atheroprotective to an atheroprone phenotype in response to cyclic stretch. Using primary human umbilical vein endothelial cells (HUVECs), we determined the role of the equibiaxial cyclic stretch in vitro, with changes to the radius of the magnitudes of 10% and 20%, which are representative of physiological and pathological strain, respectively. Following the transcriptome analysis of next-generation sequencing data, we identified four key endothelial responses to pathological cyclic stretch: cell cycle regulation, inflammatory response, fatty acid metabolism, and mTOR signaling, driven by a regulatory network of eight transcription factors. Our study highlights the dynamic regulation of several key stretch-sensitive endothelial functions relevant to the induction of an atheroprone versus an atheroprotective phenotype and lays the foundation for further investigation into the mechanisms governing vascular pathology. This study has significant implications for the development of treatment modalities for vascular disease.
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Affiliation(s)
- Michael W. Lai
- Bioengineering Program, DeMatteis School of Engineering and Applied Science, Hofstra University, New York, NY 11549, USA
| | - Nathan Chow
- Bioengineering Program, DeMatteis School of Engineering and Applied Science, Hofstra University, New York, NY 11549, USA
| | - Antonio Checco
- Bioengineering Program, DeMatteis School of Engineering and Applied Science, Hofstra University, New York, NY 11549, USA
| | - Balvir Kunar
- Division of Regenerative Medicine, Ansary Stem Cell Institute, Weill Cornell Medicine (WCM), New York, NY 10065, USA
| | - David Redmond
- Division of Regenerative Medicine, Ansary Stem Cell Institute, Weill Cornell Medicine (WCM), New York, NY 10065, USA
| | - Shahin Rafii
- Division of Regenerative Medicine, Ansary Stem Cell Institute, Weill Cornell Medicine (WCM), New York, NY 10065, USA
| | - Sina Y. Rabbany
- Bioengineering Program, DeMatteis School of Engineering and Applied Science, Hofstra University, New York, NY 11549, USA
- Division of Regenerative Medicine, Ansary Stem Cell Institute, Weill Cornell Medicine (WCM), New York, NY 10065, USA
- Correspondence: ; Tel.: +1-516-463-6672
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28
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Illig D, Kotlarz D. Dysregulated inflammasome activity in intestinal inflammation - Insights from patients with very early onset IBD. Front Immunol 2022; 13:1027289. [PMID: 36524121 PMCID: PMC9744759 DOI: 10.3389/fimmu.2022.1027289] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/11/2022] [Indexed: 11/30/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a multifactorial disorder triggered by imbalances of the microbiome and immune dysregulations in genetically susceptible individuals. Several mouse and human studies have demonstrated that multimeric inflammasomes are critical regulators of host defense and gut homeostasis by modulating immune responses to pathogen- or damage-associated molecular patterns. In the context of IBD, excessive production of pro-inflammatory Interleukin-1β has been detected in patient-derived intestinal tissues and correlated with the disease severity or failure to respond to anti-tumor necrosis factor therapy. Correspondingly, genome-wide association studies have suggested that single nucleotide polymorphisms in inflammasome components might be associated with risk of IBD development. The relevance of inflammasomes in controlling human intestinal homeostasis has been further exemplified by the discovery of very early onset IBD (VEO-IBD) patients with monogenic defects affecting different molecules in the complex regulatory network of inflammasome activity. This review provides an overview of known causative monogenic entities of VEO-IBD associated with altered inflammasome activity. A better understanding of the molecular mechanisms controlling inflammasomes in monogenic VEO-IBD may open novel therapeutic avenues for rare and common inflammatory diseases.
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Affiliation(s)
- David Illig
- Department of Pediatrics, Dr. von Hauner Children’s Hospital, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Daniel Kotlarz
- Department of Pediatrics, Dr. von Hauner Children’s Hospital, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany,Institute of Translational Genomics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,*Correspondence: Daniel Kotlarz,
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29
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Kii S, Kitamura H, Hashimoto S, Ikeo K, Ichikawa N, Yoshida T, Homma S, Tanino M, Taketomi A. STAT1-mediated induction of Ly6c-expressing macrophages are involved in the pathogenesis of an acute colitis model. Inflamm Res 2022; 71:1079-1094. [PMID: 35913585 DOI: 10.1007/s00011-022-01620-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 06/28/2022] [Accepted: 07/16/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND The development of inflammatory bowel diseases is thought to be multifactorial, but the exact steps in pathogenesis are poorly understood. In this study, we investigated involvement of the activation of STAT1 signal pathway in the pathogenesis of an acute colitis model. METHODS A dextran sulfate sodium-induced acute colitis model was established by using wild-type C57BL/6 mice and STAT1-deficient mice. Disease indicators such as body weight loss and clinical score, induction of cytokines, chemokines, and inflammatory cells were evaluated in the acute colitis model. RESULTS Disease state was significantly improved in the acute colitis model using STAT1-deficient mice compared with wild-type mice. The induction of Ly6c-highly expressing cells in colorectal tissues was attenuated in STAT1-deficient mice. IL-6, CCL2, and CCR2 gene expressions in Ly6c-highly expressing cells accumulated in the inflamed colon tissues and were significantly higher than in Ly6c-intermediate-expressing cells, whereas TNF-α and IFN-α/β gene expression was higher in Ly6c-intermediate-expressing cells. Blockade of CCR2-mediated signaling significantly reduced the disease state in the acute colitis model. CONCLUSIONS Two different types of Ly6c-expressing macrophages are induced in the inflamed tissues through the IFN-α/β-STAT1-mediated CCL2/CCR2 cascade and this is associated with the pathogenesis such as onset, exacerbation, and subsequent chronicity of acute colitis.
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Affiliation(s)
- Shuhei Kii
- Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hidemitsu Kitamura
- Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.
| | - Shinichi Hashimoto
- Department of Molecular Pathophysiology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kazuho Ikeo
- DNA Data Analysis Laboratory, National Institute of Genetics, Mishima, Japan
| | - Nobuki Ichikawa
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Tadashi Yoshida
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Shigenori Homma
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Mishie Tanino
- Department of Surgical Pathology, Asahikawa Medical University, Asahikawa, Japan
| | - Akinobu Taketomi
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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Das B, Rabalais J, Kozan P, Lu T, Durali N, Okamoto K, McGeough MD, Lee BJ, Barrett KE, Marchelletta R, Sivagnanam M. The effect of a fennel seed extract on the STAT signaling and intestinal barrier function. PLoS One 2022; 17:e0271045. [PMID: 35802574 PMCID: PMC9269469 DOI: 10.1371/journal.pone.0271045] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 06/22/2022] [Indexed: 11/19/2022] Open
Abstract
Background Foeniculum vulgare, F. vulgare, commonly known as fennel, is believed to be one of the world’s oldest medicinal herbs and has been exploited by people for centuries as a nutritional aid for digestive disorders. In many southeast Asian countries, it is ingested as an after-meal snack, mukhvas, due to its breath-freshening and digestive aid properties. F. vulgare is used in some countries, such as Iran, as a complementary and alternative treatment for inflammatory bowel disease (IBD). Methods This study investigated the effects of fennel seed extract on intestinal epithelium barrier function and the Signal Transducer and Activator of Transcription (STAT) pathway. This pathway is active in inflammatory bowel disease. To study the protective effects of fennel seed extract in vitro, monolayers derived from the T84 colonic cell line were challenged with interferon-gamma (IFN-γ) and monitored with and without fennel seed extract. To complement our in vitro studies, the dextran sodium sulfate induced murine colitis model was employed to ascertain whether the protective effect of fennel seed extract can be recapitulated in vivo. Results Fennel seed extract was shown to exert a protective effect on transepithelial electrical resistance (TEER) in both T84 and murine models and showed increases in tight junction-associated mRNA in T84 cell monolayers. Both models demonstrated significant decreases in phosphorylated STAT1 (pSTAT1), indicating reduced activation of the STAT pathway. Additionally, mice treated with fennel seed showed significantly lower ulcer indices than control mice. Conclusions We conclude barrier function of the gastrointestinal tract is improved by fennel seed extract, suggesting the potential utility of this agent as an alternative or adjunctive therapy in IBD.
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Affiliation(s)
- Barun Das
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - John Rabalais
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Philip Kozan
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Tina Lu
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Nassim Durali
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Kevin Okamoto
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Matthew D. McGeough
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Beom Jae Lee
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States of America
- Department of Gastroenterology, Korea University, Guro Hospital, Seoul, South Korea
| | - Kim E. Barrett
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States of America
- Department of Physiology and Membrane Biology, University of California, Davis, Davis, CA, United States of America
| | - Ronald Marchelletta
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States of America
| | - Mamata Sivagnanam
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
- Rady Children’s Hospital, San Diego, CA, United States of America
- * E-mail:
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Xu MM, Wu B, Huang GG, Feng CL, Wang XH, Wang HY, Wu YW, Tang W. Hemin protects against Zika virus infection by disrupting virus-endosome fusion. Antiviral Res 2022; 203:105347. [DOI: 10.1016/j.antiviral.2022.105347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022]
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Aghamohammad S, Sepehr A, Miri ST, Najafi S, Pourshafie MR, Rohani M. Anti‐inflammatory and immunomodulatory effects of
Lactobacillus
spp. as a preservative and therapeutic agent for IBD control. Immun Inflamm Dis 2022; 10:e635. [PMID: 35634951 PMCID: PMC9119005 DOI: 10.1002/iid3.635] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 12/28/2022] Open
Abstract
Background Methods Results Conclusions
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Affiliation(s)
| | - Amin Sepehr
- Department of Bacteriology Pasteur Institute of Iran Tehran Iran
| | - Seyedeh Tina Miri
- Department of Biology, Science and Research Branch Islamic Azad University Tehran Iran
| | - Saeideh Najafi
- Department of Biology, Science and Research Branch Islamic Azad University Tehran Iran
| | | | - Mahdi Rohani
- Department of Bacteriology Pasteur Institute of Iran Tehran Iran
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A novel LncRNA PTH-AS upregulates interferon-related DNA damage resistance signature genes and promotes metastasis in human breast cancer xenografts. J Biol Chem 2022; 298:102065. [PMID: 35618021 PMCID: PMC9198338 DOI: 10.1016/j.jbc.2022.102065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 11/20/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are important tissue-specific regulators of gene expression, and their dysregulation can induce aberrant gene expression leading to various pathological conditions, including cancer. Although many lncRNAs have been discovered by computational analysis, most of these are as yet unannotated. Herein, we describe the nature and function of a novel lncRNA detected downstream of the human parathyroid hormone (PTH) gene in both extremely rare ectopic PTH-producing retroperitoneal malignant fibrous histiocytoma and parathyroid tumors with PTH overproduction. This novel lncRNA, which we have named "PTH-AS," has never been registered in a public database, and here, we investigated for the first time its exact locus, length, transcription direction, polyadenylation, and nuclear localization. Microarray and Gene Ontology analyses demonstrated that forced expression of PTH-AS in PTH-nonexpressing human breast cancer T47D cells did not induce the ectopic expression of the nearby PTH gene but did significantly upregulate Janus kinase-signal transducer and activator of transcription pathway-related genes such as cancer-promoting interferon-related DNA damage resistance signature (IRDS) genes. Importantly, we show that PTH-AS expression not only enhanced T47D cell invasion and resistance to the DNA-damaging drug doxorubicin but also promoted lung metastasis rather than tumor growth in a mouse xenograft model. In addition, PTH-AS-expressing T47D tumors showed increased macrophage infiltration that promoted angiogenesis, similar to IRDS-associated cancer characteristics. Although the detailed molecular mechanism remains imperfectly understood, we conclude that PTH-AS may contribute to tumor development, possibly through IRDS gene upregulation.
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Proteomics of lung tissue reveals differences in inflammation and alveolar-capillary barrier response between atelectasis and aerated regions. Sci Rep 2022; 12:7065. [PMID: 35487970 PMCID: PMC9053128 DOI: 10.1038/s41598-022-11045-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 04/14/2022] [Indexed: 11/19/2022] Open
Abstract
Atelectasis is a frequent clinical condition, yet knowledge is limited and controversial on its biological contribution towards lung injury. We assessed the regional proteomics of atelectatic versus normally-aerated lung tissue to test the hypothesis that immune and alveolar-capillary barrier functions are compromised by purely atelectasis and dysregulated by additional systemic inflammation (lipopolysaccharide, LPS). Without LPS, 130 proteins were differentially abundant in atelectasis versus aerated lung, mostly (n = 126) with less abundance together with negatively enriched processes in immune, endothelial and epithelial function, and Hippo signaling pathway. Instead, LPS-exposed atelectasis produced 174 differentially abundant proteins, mostly (n = 108) increased including acute lung injury marker RAGE and chemokine CCL5. Functional analysis indicated enhanced leukocyte processes and negatively enriched cell-matrix adhesion and cell junction assembly with LPS. Additionally, extracellular matrix organization and TGF-β signaling were negatively enriched in atelectasis with decreased adhesive glycoprotein THBS1 regardless of LPS. Concordance of a subset of transcriptomics and proteomics revealed overlap of leukocyte-related gene-protein pairs and processes. Together, proteomics of exclusively atelectasis indicates decreased immune response, which converts into an increased response with LPS. Alveolar-capillary barrier function-related proteomics response is down-regulated in atelectasis irrespective of LPS. Specific proteomics signatures suggest biological mechanistic and therapeutic targets for atelectasis-associated lung injury.
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35
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STAT signaling as a target for intervention: from cancer inflammation and angiogenesis to non-coding RNAs modulation. Mol Biol Rep 2022; 49:8987-8999. [PMID: 35474053 DOI: 10.1007/s11033-022-07399-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/10/2022] [Accepted: 03/16/2022] [Indexed: 12/21/2022]
Abstract
As a landmark, scientific investigation in cytokine signaling and interferon-related anti-viral activity, signal transducer and activator of transcription (STAT) family of proteins was first discovered in the 1990s. Today, we know that the STAT family consists of several transcription factors which regulate various molecular and cellular processes, including proliferation, angiogenesis, and differentiation in human carcinoma. STAT family members play an active role in transducing signals from cell membrane to nucleus through intracellular signaling and thus activating gene transcription. Additionally, they are also associated with the development and progression of human cancer by facilitating inflammation, cell survival, and resistance to therapeutic responses. Accumulating evidence suggests that not all STAT proteins are associated with the progression of human malignancy; however, STAT3/5 are constitutively activated in various cancers, including multiple myeloma, lymphoma, breast cancer, prostate hepatocellular carcinoma, and non-small cell lung cancer. The present review highlights how STAT-associated events are implicated in cancer inflammation, angiogenesis and non-coding RNA (ncRNA) modulation to highlight potential intervention into carcinogenesis-related cellular processes.
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Yang T, Ma X, Wang R, Liu H, Wei S, Jing M, Li H, Zhao Y. Berberine inhibits IFN-γ signaling pathway in DSS-induced ulcerative colitis. Saudi Pharm J 2022; 30:764-778. [PMID: 35812150 PMCID: PMC9257906 DOI: 10.1016/j.jsps.2022.03.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/25/2022] [Indexed: 11/25/2022] Open
Abstract
Aims The potential signaling pathways and core genes in ulcerative colitis (UC) were investigated in this study. Furthermore, potential mechanisms of BBR in treating UC were also explored. Methods Expression profiling by array of UC patients were obtained from Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were determined with the differential analysis. The biological functions of DEGs were analyzed through the Database for Annotation, Visualization and Integrated Discovery (DAVID). The Gene Set Enrichment Analysis (GSEA) was applied to analyze the expression differences between two different phenotype sample sets. Dextran sulfate sodium (DSS) was applied to establish UC model of mice and lipopolysaccharide (LPS) was utilized to induce inflammatory damage of NCM460 cells. Therapeutic effects of berberine (BBR) on disease performance, pathologic changes and serum supernatant indices were analyzed in vivo. To further investigate the potential mechanisms of BBR in treating UC, the expression of genes and proteins in vivo and in vitro were examined by RT-qPCR, immunohistochemical staining and western blotting. Results Immune-inflammatory genes were identified and up-regulated significantly in UC patients. In addition, IFN-γ signaling pathway and its core genes were significantly up-regulated in the phenotype of UC. All disease performance and the pathologic changes of UC in mice were evidently ameliorated by BBR treatment. The pro-inflammatory cytokines of serum, including CXCL9, CXCL1, IL-17 and TNF-α, in UC mice were significantly reduced by treatment of BBR. In terms of mechanisms of BBR in treating UC, the pro-inflammatory and immune-related genes, encoding IFN-γ, IRF8, NF-κB and TNF-α decreased significantly in UC mice followed by BBR treatment. Meanwhile, the expression of IFN-γ and its initiated targets, including IRF8, Ifit1, Ifit3, IRF1, were suppressed significantly by BBR treatment in vivo. The blocking of IFN-γ in vitro led to the silence of IFN-γ signaling pathway after exposure to BBR. Furthermore, the blocking of IFN-γ in vitro led to the silence of IFN-γ signaling pathway after exposure to BBR. Conclusion BBR holds anti-inflammatory activity and can treat UC effectively. The anti-inflammatory property of BBR is tightly related to the suppression of IFN-γ signaling pathway, which is crucial in immune-inflammatory responses of the colon mucosa.
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Affiliation(s)
- Tao Yang
- Colorectal and Anal Surgery, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No 71 Baoshan North Road, Guiyang 550001, China
| | - Xiao Ma
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611100, China
| | - Ruilin Wang
- Integrative Medical Center, Chinese PLA General Hospital, Beijing 100039, China
| | - Honghong Liu
- Department of Policlinic, Chinese PLA General Hospital, Beijing 100039, China
| | - Shizhang Wei
- Department of Pharmacy, Chinese PLA General Hospital, Beijing 100039, China
| | - Manyi Jing
- Department of Pharmacy, Chinese PLA General Hospital, Beijing 100039, China
| | - Haotian Li
- Department of Pharmacy, Chinese PLA General Hospital, Beijing 100039, China
| | - Yanling Zhao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing 100039, China
- Corresponding author at: Department of Pharmacy, Chinese PLA General Hospital, No 100 West Fourth Ring Middle Road Beijing, 100039, China.
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Okuzono Y, Muraki Y, Sato S. TNFR2 pathways are fully active in cancer regulatory T cells. Biosci Biotechnol Biochem 2022; 86:351-361. [PMID: 35015831 DOI: 10.1093/bbb/zbab226] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/28/2021] [Indexed: 12/11/2022]
Abstract
Tumor necrosis factor receptor 2 (TNFR2), a membrane-bound tumor necrosis factor receptor expressed by regulatory T cells (Tregs), participates in Treg proliferation. Although a specific TNFR2 pathway has been reported, the signaling mechanism has not been completely elucidated. This study sought to clarify TNFR2 signaling in human Tregs using amplicon sequencing and single-cell RNA sequencing to assess Tregs treated with a TNFR2 agonist antibody. Pathway enrichment analysis based on differentially expressed genes highlighted tumor necrosis factor α signaling via nuclear factor kappa B, interleukin-2 signal transducer and activator of transcription 5 signaling, interferon-γ response, and cell proliferation-related pathways in Tregs after TNFR2 activation. TNFR2-high Treg-focused analysis found that these pathways were fully activated in cancer Tregs, showing high TNFR2 expression. Collectively, these findings suggest that TNFR2 orchestrates multiple pathways in cancer Tregs, which could help cancer cells escape immune surveillance, making TNFR2 signaling a potential anticancer therapy target.
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Affiliation(s)
- Yuumi Okuzono
- Immunology Unit, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Yo Muraki
- Immunology Unit, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Shuji Sato
- Immunology Unit, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
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EMT and Inflammation: Crossroads in HCC. J Gastrointest Cancer 2022; 54:204-212. [PMID: 35020133 DOI: 10.1007/s12029-021-00801-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2021] [Indexed: 10/19/2022]
Abstract
Hepatocellular carcinoma is one of the major causes of cancer-related deaths worldwide and is associated with several inflammatory mediators, since 90% of HCCs occur based on chronic hepatitis B or C, alcoholism or increasingly metabolic syndrome-associated inflammation. EMT is a physiological process, with coordinated changes in epithelial gene signatures and is regulated by multiple factors, including cytokines and growth factors such as TGFβ, EGF, and FGF. Recent reports propose a strong association between EMT and inflammation, which is also correlated with tumor aggressiveness and poor outcomes. Cellular heterogeneity results collectively as an outcome of EMT, inflammation, and the tumor microenvironment, and it plays a fundamental role in the progression, complexity of cancer, and chemoresistance. In this review, we highlight recent developments concerning the association of EMT and inflammation in the context of HCC progression. Identifying potential EMT-related biomarkers and understanding EMT regulatory molecules will likely contribute to promising developments in clinical practice and will be a valuable tool for predicting metastasis in general and specifically in HCC.
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Awasthi N, Liongue C, Ward AC. STAT proteins: a kaleidoscope of canonical and non-canonical functions in immunity and cancer. J Hematol Oncol 2021; 14:198. [PMID: 34809691 PMCID: PMC8607625 DOI: 10.1186/s13045-021-01214-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/09/2021] [Indexed: 12/24/2022] Open
Abstract
STAT proteins represent an important family of evolutionarily conserved transcription factors that play key roles in diverse biological processes, notably including blood and immune cell development and function. Classically, STAT proteins have been viewed as inducible activators of transcription that mediate cellular responses to extracellular signals, particularly cytokines. In this 'canonical' paradigm, latent STAT proteins become tyrosine phosphorylated following receptor activation, typically via downstream JAK proteins, facilitating their dimerization and translocation into the nucleus where they bind to specific sequences in the regulatory region of target genes to activate transcription. However, growing evidence has challenged this paradigm and identified alternate 'non-canonical' functions, such as transcriptional repression and roles outside the nucleus, with both phosphorylated and unphosphorylated STATs involved. This review provides a revised framework for understanding the diverse kaleidoscope of STAT protein functional modalities. It further discusses the implications of this framework for our understanding of STAT proteins in normal blood and immune cell biology and diseases such as cancer, and also provides an evolutionary context to place the origins of these alternative functional modalities.
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Affiliation(s)
- Nagendra Awasthi
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia.,Institue of Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia.,Institue of Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
| | - Alister C Ward
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia. .,Institue of Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia.
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Benzyl-para-di-[5-methyl-4-(n-octylamino) pyrimidin-2(1H)one] as an interferon beta (IFN-β) modulator. Mol Divers 2021; 26:2175-2188. [PMID: 34668104 DOI: 10.1007/s11030-021-10324-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/18/2021] [Indexed: 10/20/2022]
Abstract
IFN-β is a cytokine that plays a significant role in the immune system. Inhibition of IFN-β might be used as a therapeutic approach to treat septic shock. A peptidomimetic previously developed by our research team, 1-benzyl-5-methyl-4-(n-octylamino)pyrimidin-2(1H)-one (LT87), was used as an cardioprotective agent in a myocardial ischemia (MI) mouse model. We have developed new LT87 derivatives by synthetizing its dimers in an attempt to extend its structural variety and enhance its biological activity. A dimeric derivative, LT127, exhibited a dose-dependent inhibition of LPS-mediated IFN-β and subsequent CXCL10 mRNA transcription. The effect was selective and transduced through TLR4- and TRAM/TRIF-mediated signaling, with no significant effect on MyD88-dependent signaling. However, this effect was not specific to TLR4, since a similar effect was observed both on TLR8- and MDA5/RIG-I-stimulated IFN-β expression. Nevertheless, LT127 might serve as a drug candidate, specifically as an inhibitor for IFN-β production in order to develop a novel therapeutic approach to prevent septic shock.
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Seachrist DD, Anstine LJ, Keri RA. FOXA1: A Pioneer of Nuclear Receptor Action in Breast Cancer. Cancers (Basel) 2021; 13:cancers13205205. [PMID: 34680352 PMCID: PMC8533709 DOI: 10.3390/cancers13205205] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 12/26/2022] Open
Abstract
The pioneering function of FOXA1 establishes estrogen-responsive transcriptomes in luminal breast cancer. Dysregulated FOXA1 chromatin occupancy through focal amplification, mutation, or cofactor recruitment modulates estrogen receptor (ER) transcriptional programs and drives endocrine-resistant disease. However, ER is not the sole nuclear receptor (NR) expressed in breast cancers, nor is it the only NR for which FOXA1 serves as a licensing factor. Receptors for androgens, glucocorticoids, and progesterone are also found in the majority of breast cancers, and their functions are also impacted by FOXA1. These NRs interface with ER transcriptional programs and, depending on their activation level, can reprogram FOXA1-ER cistromes. Thus, NR interplay contributes to endocrine therapy response and resistance and may provide a vulnerability for future therapeutic benefit in patients. Herein, we review what is known regarding FOXA1 regulation of NR function in breast cancer in the context of cell identity, endocrine resistance, and NR crosstalk in breast cancer progression and treatment.
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Affiliation(s)
- Darcie D. Seachrist
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA;
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA;
| | - Lindsey J. Anstine
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA;
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Ruth A. Keri
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA;
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA;
- Department of Cancer Biology, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
- Correspondence:
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Latha K, Jamison KF, Watford WT. Tpl2 Ablation Leads to Hypercytokinemia and Excessive Cellular Infiltration to the Lungs During Late Stages of Influenza Infection. Front Immunol 2021; 12:738490. [PMID: 34691044 PMCID: PMC8529111 DOI: 10.3389/fimmu.2021.738490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/07/2021] [Indexed: 01/22/2023] Open
Abstract
Tumor progression locus 2 (Tpl2) is a serine-threonine kinase known to promote inflammation in response to various pathogen-associated molecular patterns (PAMPs), inflammatory cytokines and G-protein-coupled receptors and consequently aids in host resistance to pathogens. We have recently shown that Tpl2-/- mice succumb to infection with a low-pathogenicity strain of influenza (x31, H3N2) by an unknown mechanism. In this study, we sought to characterize the cytokine and immune cell profile of influenza-infected Tpl2-/- mice to gain insight into its host protective effects. Although Tpl2-/- mice display modestly impaired viral control, no virus was observed in the lungs of Tpl2-/- mice on the day of peak morbidity and mortality suggesting that morbidity is not due to virus cytopathic effects but rather to an overactive antiviral immune response. Indeed, increased levels of interferon-β (IFN-β), the IFN-inducible monocyte chemoattractant protein-1 (MCP-1, CCL2), Macrophage inflammatory protein 1 alpha (MIP-1α; CCL3), MIP-1β (CCL4), RANTES (CCL5), IP-10 (CXCL10) and Interferon-γ (IFN-γ) was observed in the lungs of influenza-infected Tpl2-/- mice at 7 days post infection (dpi). Elevated cytokine and chemokines were accompanied by increased infiltration of the lungs with inflammatory monocytes and neutrophils. Additionally, we noted that increased IFN-β correlated with increased CCL2, CXCL1 and nitric oxide synthase (NOS2) expression in the lungs, which has been associated with severe influenza infections. Bone marrow chimeras with Tpl2 ablation localized to radioresistant cells confirmed that Tpl2 functions, at least in part, within radioresistant cells to limit pro-inflammatory response to viral infection. Collectively, this study suggests that Tpl2 tempers inflammation during influenza infection by constraining the production of interferons and chemokines which are known to promote the recruitment of detrimental inflammatory monocytes and neutrophils.
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Affiliation(s)
- Krishna Latha
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States
| | - Katelyn F. Jamison
- Department of Cellular Biology, University of Georgia, Athens, GA, United States
| | - Wendy T. Watford
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States
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Häger SC, Dias C, Sønder SL, Olsen AV, da Piedade I, Heitmann ASB, Papaleo E, Nylandsted J. Short-term transcriptomic response to plasma membrane injury. Sci Rep 2021; 11:19141. [PMID: 34580330 PMCID: PMC8476590 DOI: 10.1038/s41598-021-98420-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 09/06/2021] [Indexed: 12/13/2022] Open
Abstract
Plasma membrane repair mechanisms are activated within seconds post-injury to promote rapid membrane resealing in eukaryotic cells and prevent cell death. However, less is known about the regeneration phase that follows and how cells respond to injury in the short-term. Here, we provide a genome-wide study into the mRNA expression profile of MCF-7 breast cancer cells exposed to injury by digitonin, a mild non-ionic detergent that permeabilizes the plasma membrane. We focused on the early transcriptional signature and found a time-dependent increase in the number of differentially expressed (> twofold, P < 0.05) genes (34, 114 and 236 genes at 20-, 40- and 60-min post-injury, respectively). Pathway analysis highlighted a robust and gradual three-part transcriptional response: (1) prompt activation of immediate-early response genes, (2) activation of specific MAPK cascades and (3) induction of inflammatory and immune pathways. Therefore, plasma membrane injury triggers a rapid and strong stress and immunogenic response. Our meta-analysis suggests that this is a conserved transcriptome response to plasma membrane injury across different cell and injury types. Taken together, our study shows that injury has profound effects on the transcriptome of wounded cells in the regeneration phase (subsequent to membrane resealing), which is likely to influence cellular status and has been previously overlooked.
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Affiliation(s)
- Swantje Christin Häger
- Membrane Integrity, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Catarina Dias
- Membrane Integrity, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Stine Lauritzen Sønder
- Membrane Integrity, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - André Vidas Olsen
- Computational Biology Laboratory, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Isabelle da Piedade
- Computational Biology Laboratory, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Anne Sofie Busk Heitmann
- Membrane Integrity, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Elena Papaleo
- Computational Biology Laboratory, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
- Translational Disease Systems Biology, Faculty of Health and Medical Sciences, Novo Nordisk Foundation Center for Protein Research University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen N, Denmark
| | - Jesper Nylandsted
- Membrane Integrity, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark.
- Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3C, 2200, Copenhagen N, Denmark.
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Chen L, Lu D, Yu K, He S, Liu L, Zhang X, Feng B, Wang X. Bioinformatics Analysis for Identification of Key Genes in Salivary Gland and the Potential of a Combination of Biomarkers for the Diagnosis of SS. J Inflamm Res 2021; 14:4143-4153. [PMID: 34475773 PMCID: PMC8405838 DOI: 10.2147/jir.s322318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/09/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Sjögren's syndrome (SS) is a systemic autoimmune disease mainly characterized by dysfunction of exocrine glands. Studies on diagnosis models specific for SS patients are very limited. We aimed to use gene expression datasets from salivary glands to identify aberrant differentially expressed genes (DEGs) and pathways by bioinformatics and validate candidate genes by clinical minor labial gland biopsy (MSGB) samples, and finally build a combined gene quantitative diagnosis model of SS. Patients and Methods Original datasets GSE23117, GSE7451, and GSE127952 were obtained from the Gene Expression Omnibus database (GEO) and integrated and analyzed for differentially expressed genes in SS salivary glands. ClueGO and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses of upregulated and downregulated DEGs were performed, and protein-protein interaction (PPI) networks were constructed using the STRING and Cytoscape database. H&E staining and immunohistochemistry were used to validate the expression levels of four hub genes in salivary glands. Finally, a receiver operating characteristic (ROC) curve of the combined diagnosis of four hub genes was analyzed in SS patients and non-SS patients in order to explore the diagnostic efficacy of these genes compared with conventional FS in SS. Results Fifty-three upregulated genes and fifteen downregulated genes were identified. We analyzed the expression and function of four hub genes via H&E, immunohistochemistry, and ROC analysis. We then evaluated and verified the diagnosis value of four hub genes, STAT1, MNDA, IL10RA, and CCR1 in MSGB of SS and non-SS. A combined diagnosis model of four indicators was established to identify patients' discrete data on the foci size (AUC=0.915). Conclusion The expression of STAT1, MNDA, and IL10RA may be potential biological indicators for SS diagnosis. Compared with FS, a combined diagnosis model of quantitative gene expression could potentially contribute to improving the sensitivity and specificity of MSGB of SS.
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Affiliation(s)
- Liying Chen
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People's Republic of China
| | - Dingqi Lu
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People's Republic of China
| | - Kai Yu
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People's Republic of China
| | - Shiya He
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People's Republic of China
| | - Liu Liu
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People's Republic of China
| | - Xvfeng Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People's Republic of China
| | - Bo Feng
- Department of Nephrology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, Zhejiang Province, 314001, People's Republic of China
| | - Xinchang Wang
- Department of Rheumatology, The Second Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310005, People's Republic of China
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Musella M, Galassi C, Manduca N, Sistigu A. The Yin and Yang of Type I IFNs in Cancer Promotion and Immune Activation. BIOLOGY 2021; 10:biology10090856. [PMID: 34571733 PMCID: PMC8467547 DOI: 10.3390/biology10090856] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/22/2022]
Abstract
Simple Summary The crucial immune stimulatory functions exerted by Type I Interferons (IFNs) in cancer settings have been not only widely demonstrated during the last fifty years but also recently harnessed for therapy. However, depending on the dose and timing, and the downstream induced signatures, Type I IFNs can and do foster cancer progression and immune evasion. Dysregulations of Type I IFN signaling cascade are more and more frequently found in the tumor microenvironment, representing critical determinants of therapeutic innate and adaptive resistance to several anticancer treatments. Understanding when and through which genetic signatures Type I IFNs control or promote cancer growth is extremely urgent in order to prevent and by-pass the deleterious clinical effects and develop optimized innovative (combinatorial) strategies for an effective cancer management. Abstract Type I Interferons (IFNs) are key regulators of natural and therapy-induced host defense against viral infection and cancer. Several years of remarkable progress in the field of oncoimmunology have revealed the dual nature of these cytokines. Hence, Type I IFNs may trigger anti-tumoral responses, while leading immune dysfunction and disease progression. This dichotomy relies on the duration and intensity of the transduced signaling, the nature of the unleashed IFN stimulated genes, and the subset of responding cells. Here, we discuss the role of Type I IFNs in the evolving relationship between the host immune system and cancer, as we offer a view of the therapeutic strategies that exploit and require an intact Type I IFN signaling, and the role of these cytokines in inducing adaptive resistance. A deep understanding of the complex, yet highly regulated, network of Type I IFN triggered molecular pathways will help find a timely and immune“logical” way to exploit these cytokines for anticancer therapy.
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Affiliation(s)
- Martina Musella
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (C.G.); (N.M.)
- Correspondence: (M.M.); (A.S.); Tel.: +39-0649904452 (M.M.); +39-0649904457 (A.S.)
| | - Claudia Galassi
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (C.G.); (N.M.)
| | - Nicoletta Manduca
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (C.G.); (N.M.)
| | - Antonella Sistigu
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (C.G.); (N.M.)
- Tumor Immunology and Immunotherapy Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
- Correspondence: (M.M.); (A.S.); Tel.: +39-0649904452 (M.M.); +39-0649904457 (A.S.)
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Antony F, Pundkar C, Sandey M, Jaiswal AK, Mishra A, Kumar A, Channappanavar R, Suryawanshi A. IFN-λ Regulates Neutrophil Biology to Suppress Inflammation in Herpes Simplex Virus-1-Induced Corneal Immunopathology. THE JOURNAL OF IMMUNOLOGY 2021; 206:1866-1877. [PMID: 33811102 DOI: 10.4049/jimmunol.2000979] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/08/2021] [Indexed: 12/13/2022]
Abstract
HSV-1 infection of the cornea causes a severe immunoinflammatory and vision-impairing condition called herpetic stromal keratitis (SK). The virus replication in corneal epithelium followed by neutrophil- and CD4+ T cell-mediated inflammation plays a dominant role in SK. Although previous studies demonstrate critical functions of type I IFNs (IFN-α/β) in HSV-1 infection, the role of recently discovered IFN-λ (type III IFN), specifically at the corneal mucosa, is poorly defined. Our study using a mouse model of SK pathogenesis shows that HSV-1 infection induces a robust IFN-λ response compared with type I IFN production at the corneal mucosal surface. However, the normal progression of SK indicates that the endogenous IFN responses are insufficient to suppress HSV-1-induced corneal pathology. Therefore, we examined the therapeutic efficacy of exogenous rIFN-λ during SK progression. Our results show that rIFN-λ therapy suppressed inflammatory cell infiltration in the cornea and significantly reduced the SK pathologic condition. Early rIFN-λ treatment significantly reduced neutrophil and macrophage infiltration, and IL-6, IL-1β, and CXCL-1 production in the cornea. Notably, the virucidal capacity of neutrophils and macrophages measured by reactive oxygen species generation was not affected. Similarly, ex vivo rIFN-λ treatment of HSV-1-stimulated bone marrow-derived neutrophils significantly promoted IFN-stimulated genes without affecting reactive oxygen species production. Collectively, our data demonstrate that exogenous topical rIFN-λ treatment during the development and progression of SK could represent a novel therapeutic approach to control HSV-1-induced inflammation and associated vision impairment.
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Affiliation(s)
- Ferrin Antony
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849
| | - Chetan Pundkar
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849
| | - Maninder Sandey
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849
| | - Anil K Jaiswal
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849
| | - Amarjit Mishra
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849
| | - Ashok Kumar
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI 48201; and
| | | | - Amol Suryawanshi
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849;
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Th17-Related Cytokines as Potential Discriminatory Markers between Neuromyelitis Optica (Devic's Disease) and Multiple Sclerosis-A Review. Int J Mol Sci 2021; 22:ijms22168946. [PMID: 34445668 PMCID: PMC8396435 DOI: 10.3390/ijms22168946] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/15/2021] [Accepted: 08/17/2021] [Indexed: 02/06/2023] Open
Abstract
Multiple sclerosis (MS) and Devic’s disease (NMO; neuromyelitis optica) are autoimmune, inflammatory diseases of the central nervous system (CNS), the etiology of which remains unclear. It is a serious limitation in the treatment of these diseases. The resemblance of the clinical pictures of these two conditions generates a partial possibility of introducing similar treatment, but on the other hand, a high risk of misdiagnosis. Therefore, a better understanding and comparative characterization of the immunopathogenic mechanisms of each of these diseases are essential to improve their discriminatory diagnosis and more effective treatment. In this review, special attention is given to Th17 cells and Th17-related cytokines in the context of their potential usefulness as discriminatory markers for MS and NMO. The discussed results emphasize the role of Th17 immune response in both MS and NMO pathogenesis, which, however, cannot be considered without taking into account the broader perspective of immune response mechanisms.
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Conserved Gammaherpesvirus Protein Kinase Counters the Antiviral Effects of Myeloid Cell-Specific STAT1 Expression To Promote the Establishment of Splenic B Cell Latency. J Virol 2021; 95:e0085921. [PMID: 34132573 DOI: 10.1128/jvi.00859-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Gammaherpesviruses establish lifelong infections and are associated with B cell lymphomas. Murine gammaherpesvirus 68 (MHV68) infects epithelial and myeloid cells during acute infection, with subsequent passage of the virus to B cells, where physiological B cell differentiation is usurped to ensure the establishment of a chronic latent reservoir. Interferons (IFNs) represent a major antiviral defense system that engages the transcriptional factor STAT1 to attenuate diverse acute and chronic viral infections, including those of gammaherpesviruses. Correspondingly, global deficiency of type I or type II IFN signaling profoundly increases the pathogenesis of acute and chronic gammaherpesvirus infection, compromises host survival, and impedes mechanistic understanding of cell type-specific role of IFN signaling. Here, we demonstrate that myeloid-specific STAT1 expression attenuates acute and persistent MHV68 replication in the lungs and suppresses viral reactivation from peritoneal cells, without any effect on the establishment of viral latent reservoir in splenic B cells. All gammaherpesviruses encode a conserved protein kinase that antagonizes type I IFN signaling in vitro. Here, we show that myeloid-specific STAT1 deficiency rescues the attenuated splenic latent reservoir of the kinase-null MHV68 mutant. However, despite having gained access to splenic B cells, the protein kinase-null MHV68 mutant fails to drive B cell differentiation. Thus, while myeloid-intrinsic STAT1 expression must be counteracted by the gammaherpesvirus protein kinase to facilitate viral passage to splenic B cells, expression of the viral protein kinase continues to be required to promote optimal B cell differentiation and viral reactivation, highlighting the multifunctional nature of this conserved viral protein during chronic infection. IMPORTANCE IFN signaling is a major antiviral system of the host that suppresses replication of diverse viruses, including acute and chronic gammaherpesvirus infection. STAT1 is a critical member and the primary antiviral effector of IFN signaling pathways. Given the significantly compromised antiviral status of global type I or type II IFN deficiency, unabated gammaherpesvirus replication and pathogenesis hinders understanding of cell type-specific antiviral effects. In this study, a mouse model of myeloid-specific STAT1 deficiency unveiled site-specific antiviral effects of STAT1 in the lungs and peritoneal cavity, but not the spleen, of chronically infected hosts. Interestingly, expression of a conserved gammaherpesvirus protein kinase was required to counteract the antiviral effects of myeloid-specific STAT1 expression to facilitate latent infection of splenic B cells, revealing a cell type-specific virus-host antagonism during the establishment of chronic gammaherpesvirus infection.
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Nienałtowski K, Rigby RE, Walczak J, Zakrzewska KE, Głów E, Rehwinkel J, Komorowski M. Fractional response analysis reveals logarithmic cytokine responses in cellular populations. Nat Commun 2021; 12:4175. [PMID: 34234126 PMCID: PMC8263596 DOI: 10.1038/s41467-021-24449-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 06/17/2021] [Indexed: 01/10/2023] Open
Abstract
Although we can now measure single-cell signaling responses with multivariate, high-throughput techniques our ability to interpret such measurements is still limited. Even interpretation of dose–response based on single-cell data is not straightforward: signaling responses can differ significantly between cells, encompass multiple signaling effectors, and have dynamic character. Here, we use probabilistic modeling and information-theory to introduce fractional response analysis (FRA), which quantifies changes in fractions of cells with given response levels. FRA can be universally performed for heterogeneous, multivariate, and dynamic measurements and, as we demonstrate, quantifies otherwise hidden patterns in single-cell data. In particular, we show that fractional responses to type I interferon in human peripheral blood mononuclear cells are very similar across different cell types, despite significant differences in mean or median responses and degrees of cell-to-cell heterogeneity. Further, we demonstrate that fractional responses to cytokines scale linearly with the log of the cytokine dose, which uncovers that heterogeneous cellular populations are sensitive to fold-changes in the dose, as opposed to additive changes. Our ability to interpret single-cell multivariate signaling responses is still limited. Here the authors introduce fractional response analysis (FRA), involving fractional cell counting, capable of deconvoluting heterogeneous multivariate responses of cellular populations.
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Affiliation(s)
- Karol Nienałtowski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Rachel E Rigby
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Jarosław Walczak
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Karolina E Zakrzewska
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Edyta Głów
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Jan Rehwinkel
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Michał Komorowski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland.
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Vallejo AN, Mroczkowski HJ, Michel JJ, Woolford M, Blair HC, Griffin P, McCracken E, Mihalik SJ, Reyes‐Mugica M, Vockley J. Pervasive inflammatory activation in patients with deficiency in very-long-chain acyl-coA dehydrogenase (VLCADD). Clin Transl Immunology 2021; 10:e1304. [PMID: 34194748 PMCID: PMC8236555 DOI: 10.1002/cti2.1304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 05/06/2021] [Accepted: 06/03/2021] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVES Very-long-chain acyl-CoA dehydrogenase deficiency (VLCADD) is a disorder of fatty acid oxidation. Symptoms are managed by dietary supplementation with medium-chain fatty acids that bypass the metabolic block. However, patients remain vulnerable to hospitalisations because of rhabdomyolysis, suggesting pathologic processes other than energy deficit. Since rhabdomyolysis is a self-destructive process that can signal inflammatory/immune cascades, we tested the hypothesis that inflammation is a physiologic dimension of VLCADD. METHODS All subjects (n = 18) underwent informed consent/assent. Plasma cytokine and cytometry analyses were performed. A prospective case analysis was carried out on a patient with recurrent hospitalisation. Health data were extracted from patient medical records. RESULTS Patients showed systemic upregulation of nine inflammatory mediators during symptomatic and asymptomatic periods. There was also overall abundance of immune cells with high intracellular expression of IFNγ, IL-6, MIP-1β (CCL4) and TNFα, and the transcription factors p65-NFκB and STAT1 linked to inflammatory pathways. A case analysis of a patient exhibited already elevated plasma cytokine levels during diagnosis in early infancy, evolving into sustained high systemic levels during recurrent rhabdomyolysis-related hospitalisations. There were corresponding activated leukocytes, with higher intracellular stores of inflammatory molecules in monocytes compared to T cells. Exposure of monocytes to long-chain free fatty acids recapitulated the cytokine signature of patients. CONCLUSION Pervasive plasma cytokine upregulation and pre-activated immune cells indicate chronic inflammatory state in VLCADD. Thus, there is rationale for practical implementation of clinical assessment of inflammation and/or translational testing, or adoption, of anti-inflammatory intervention(s) for personalised disease management.
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Affiliation(s)
- Abbe N Vallejo
- Division of Pediatric Rheumatology, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Department of ImmunologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Children's Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA
| | - Henry J Mroczkowski
- Children's Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA
- Division of Genetic and Genomic Medicine, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Present address:
Department of PediatricsUniversity of Tennessee Health Sciences CenterMemphisTNUSA
| | - Joshua J Michel
- Division of Pediatric Rheumatology, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Michael Woolford
- Division of Pediatric Rheumatology, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Harry C Blair
- Department of PathologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Department of Cell BiologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Pittsburgh Veterans Administration Medical CenterPittsburghPAUSA
| | - Patricia Griffin
- Division of Pediatric Rheumatology, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Elizabeth McCracken
- Children's Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA
- Division of Genetic and Genomic Medicine, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Center for Rare Disease and TherapyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Stephanie J Mihalik
- Division of Genetic and Genomic Medicine, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Department of PathologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Miguel Reyes‐Mugica
- Children's Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA
- Department of PathologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Jerry Vockley
- Children's Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA
- Division of Genetic and Genomic Medicine, Department of PediatricsUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Center for Rare Disease and TherapyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Department of Human GeneticsUniversity of Pittsburgh Graduate School of Public HealthPittsburghPAUSA
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